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Basic Information | Recommended: Player Level 110+ & Weapon Upgrade +9

Labyrinth	Chalice	Required Materials	Layer Bosses	Key Rewards
Cursed Pthumerian Defilement Depth 4		Ritual Blood(4) x9 Bastard of Loran x2 Arcane Haze x22 Blood Echoes x5500	L1: Keeper of the Old Lords L2: Watchdog of the Old Lords L3: Amygdala	L1 Boss: Cursed Sharp Damp Blood Gem(5) L2 Boss: Cursed and Defiled Root Chalice L3 Boss: Great Pthumeru Ihyll Chalice

Pthumerian Flow Chart

Sinister Chalices										Pthumeru The underground labyrinth is extremely large, and changes its form the deeper it goes. Each part has its own unique appearance and tendencies, though, and these are divided into four distinct areas: Pthumeru, Hintertomb, Loran and Isz. Pthumeru specifics The standard area type, usually with a basic room structure. No particular elemental type dominates. Kidnappers appear often. Merciless Watchers guard floor levers.
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Preset Chalices		→		→		→	YOU ARE HERE	→
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Root Chalices

After going through Ailing Loran you should have the two Bastards of Loran and nine Ritual Blood (4) needed for crafting this Dungeon. For the 22 Arcane Hazes, you may want to kill some Fluorescent Flowers on the third level of the first Pthumerian Labyrinth in the garden plaza. Alternately, you can use the Workshop Haze Extractor you collected from the Lower Pthumerian Labyrinth to extract the Arcane Hazes you need. In order to avoid sacrificing the rare, ritual crafting items you have amassed so far, use only the materials you can also purchase at either the Blood Echoes or Insight Bath Messenger shops in the Hunter's Dream. The most challenging aspect of this 'cursed' Depth four Chalice Labyrinth is that your HP is lowered by 50%. Needless to say, having a character build with high Vitality will help a lot here. All Blood Gems collected from this and other cursed labyrinths are, naturally, cursed. This means adding them to your equipped weapon is going to have some kind of detrimental effect on your character or that particular weapon's performance, but the gem's benefits can also be higher than usual. Old Hunter Allies: With patch v1.07 a wide variety of new and existing NPCs have been added to the main game, the Old Hunters areas and the Chalice Dungeons to aid you during the hunt, particularly during boss fights. The conditions for summoning these allies vary; the “Old Hunter Bell” is a universal requirement for calling any of them. In some areas you may be able to summon up to two NPC Hunters. In Cursed Pthumerian Defilement you can summon Tomb Prospector Olek on Layer 2 for Watchdog of the Old Lords boss, his sign is a little to the left of where you enter the large stone elevator room. Summoning Olek will remove your ability to summon Queen Killer and vice versa. You can also summon Old Hunter Queen Killer on Layer 2 for Watchdog of the Old Lords boss, his sign is just before you open the door to the boss room you can find the summon point for Old Hunter Queen Killer to your left. And on Layer 3 for Amygdala, this summon point can be found to the left of the stairs that lead down to the boss room. Both Queen Killer and Madman Wallar can be summoned to take on Amygdala together. You can also summon Madman Wallar on Layer 3 for Amygdala boss, his sign is in the ladder pit room with the locked exit gate facing you as you enter. Just look to your left to spot the summon point. Both Madman Wallar and Queen Killer can be summoned to take on Amygdala together.

+ A Confederate's guide to summoning in the Defiled Chalice by altairnaruhodou

The Cursed and Defiled Chalice (Pthumeru Shared Fixed Dungeon line, depth 4) is often regarded as one of the most difficult chalice dungeons in the mandatory series. Besides having fairly complicated bosses on average, this chalice is the only one of the standard lot to impose the Cursed rite on players, halving their HP and seriously reducing their room for error. This becomes an issue when the enemies deal a ton of damage; unfortunately, all bosses you will have to face in Defiled check this box. Besides, since it's a mandatory step in acquiring the platinum trophy, more or less all hunters pass through this chalice sooner or later; many first-time dungeon runners struggle with the added difficulty. For these reasons, Defiled is a summoning hotspot, and definitely one of the most active chalices in online play. Moreover, the Old Hunters expansion adds two NPCs available for summon: Tomb Prospector Olek and Queen Killer. This is guide to summoning for help in Defiled Chalice. Even though extra help is nice, this dungeon is also one whose bosses are not the easiest to defeat in a group; not only that, summoning people may make things even more complicated than they were. For everyone: the boss health bars The first important thing to note for everyone is that, whenever you summon for help, the boss health bars will increase regardless of whether you summon NPCs or players. They do so as follows: Multiplied by 1.5x with one helper Multiplied 2.0x with two helpers For this reason, it is not advisable to summon more than one player in Defiled, as the increased health bar will very likely outpower your combined damage ratio. This rule applies to most cases; on occasion, fighting with two live players can be extra helpful, depending on their build and damage output. What I absolutely advise against in this specific chalice is summoning a live player and a bot, or even two bots. Bots will never compensate with their damage ratio and will likely die very quickly, leaving you and your co-operator alone with a double health bar. However, if your co-operator has good enough damage and has skill, they can use the bot as a further distraction for you both and lower health bars quickly. Offline and online: the perks If you are an online player, summoning help from live players will almost in all cases be preferable to summoning bots. Bot AI is really aggressive; they end up taking a lot of damage and dying fast, as they have a limited number of heals and don't dodge nearly enough. If you are an offline player, summoning bots can make for an excellent distraction and help you dish out a massive amount of damage in the bots' lifespan. If you have a low damage build, however, the convenience of summoning depends on how independent you are in the fighting. General setups from most to least efficient One online helper Two online helpers or one bot One online helper and one bot (convenient in some cases) Two bots (don't use) Boss 1: Keeper of the Old Lords Summoning options: Online players On her own, Keeper is an easier boss than most players think. She gets stunned fast, and her AI is easily locked into a parry spam cycle. Continuous parries + Oedon Writhe rune can prevent her from ever reaching second phase. On the other hand, her attacks are almost entirely comprised of one-shot moves, making hers a tough fight if not handled with care. I generally never summon for this boss, but if you do need help, one/two online player(s) can help you distract her, leaving her to turn around and face either of you so the other can backstab. If you have enough stamina, you and your helper(s) can also push Keeper against a wall and dish out damage in turns, leaving her locked in an endless attack cycle. She is very prone to backstepping, so use it to your advantage. Just make sure she never, ever has the time to counter, or you both will be dead in no time. In short: better fought alone, but can be easiest in co-op with one or two players.

Boss 2: Watchdog of the Old Lords Summoning options: Online players, Tomb Prospector Olek, Queen Killer One of my personal favorites among chalice dungeon bosses, Watchdog is infamous for his high difficulty to new players. He is very aggressive, has a varied moveset and can rely on some attacks that aren't heavily telegraphed. Be warned that Watchdog has a deadly charge attack, and long-range tools will almost always trigger it, with often unpredictable tracking. Having a co-oper will usually mess with the tracking and save you both, but lag and unpredictability can ruin you; it's a double edged sword. Try not to hit Watchdog from afar when someone else is attacking him. You have a great variety of summoning options; let's explore them one by one. Online players: by far the most convenient of options, both one and two are fine, depending on your damage output and your level of confidence. Queen Killer: Queen Killer is quite useful in this fight, as his Cannon spamming ability can damage Watchdog's limbs for massive damage. He will, however, expose himself to everything that comes his way, except for a few telegraphed attacks, and trigger the charge towards himself. His efficiency is maximized if you or a co-oper distract Watchdog as well and attract his attacks. This will often preserve Queen Killer till the end of the fight. Tomb Prospector Olek: He is slow, only has melee range attacks and takes a heckton of damage. It is strongly advise against summoning him - if you need a bot, Queen Killer is by far better. In short: For online, efficient with one player, two players or one player + Killer Queen. For offline, Queen Killer. Boss 3: Amygdala Summoning options: Online players, Queen Killer Everyone knows that Defiled Amygdala is the bane of most players' existence. A lesser known truth is that it is the bane of Confederates too! In fact, Defiled Amygdala is the typical boss fight that is better fought alone, and by far one of the hardest to successfully conclude in co-op. This is because, besides her huge range and health bar, she is prone to jumping and changing direction mid-air, in response to long-range attacks and player positioning. There is no reliable way to control her in this occasion, and she ends up turning the poor unfortunate soul that happens to be nearby into a pancake without a dodging chance. The problem worsens in Phase 3, when Amygdala gets a range big enough to almost cover the whole arena and starts jumping like there's no tomorrow. If you have a helper and you don't stick close together, it's almost certain death for you both. Needless to say, you are better off besting her on your own. In case you truly are desperate, here is how to work with co-op players. Online players: your best bet for co-op is having just one helper who knows what they are doing. If you feel up to it, you can stand glued to a wall in Phase 3 and let them handle Amygdala on their own. It is recommended not using Arcane or projectiles if you aren't all close together, and avoiding the tail jump strategy, as jumps are deadly in co-op play. Queen Killer: whatever happens, do NOT summon Queen Killer for this boss fight! He will never use that wonderful cannon of his to hit Amygdala's weak spot on her head. He will instead shoot her legs uselessly and get wrecked non-stop by her nimble arm attacks, dying 1 minute into the fight without even chipping at her health that much. In short: by all means best fought alone, alternatively with one player to help. No Queen Killer. Further info [video] Keeper parry spam Watchdog guide by u/amygdalapls Amygdala guideby u/amygdalapls

Enemies

							Layer	Drop
Regular Enemies
Labyrinth Watcher (Dagger)	796	835	855	2549	2677	2804	● ● ●	Blood Vial x1 [8%]
Labyrinth Watcher (Cleaver)	796	835	855	2549	2677	2804	● ● ●	Blood Vial x1 [8%]
Labyrinth Watcher (Halberd)	1255	1318	1349	2549	2677	2804	● ● ●	Random gem based on area x1 [4%], Blood Vial x2 [14%]
Labyrinth Watcher (Twin Axes)	1255	1318	1349	2549	2677	2804	● ● ●	Blood Vial x2 [8%]
Labyrinth Ritekeeper	1022	-	-	2968	-	-	● ● ●	Random gun type gem x1 [2%], Ritual Blood(4) x1 [4%]
Watcher's Gravedigger (Hook & Lantern)	1591	1671	1711	3653	3836	4018	● ● ●	Blood Vial x3 [10%], Blood Vial x2 [30%]
Watcher's Gravedigger (Pickaxe)	1591	-	1711	3653	-	4018	● ● ●	Blood Vial x2 [29%], Tomb Mold(4) x2 [0.7%], Tomb Mold(4) x1 [8%]
Watcher's Gravedigger (Rifle, Hook & Lantern)	1481	1555	-	3234	3396	-	● ● ●	Quicksilver Bullets x3 [100%]
Labyrinth Watcher (Cleaver & Lantern)	-	1318	-	-	2677	-	● ● ●	Blood Vial x1 [8%], Quicksilver Bullets x2 [8%]
Wandering Nightmare	-	319	-	-	559	-	● ● ●	Random gem based on area x1
Labyrinth Rat	-	-	855	-	-	2218	● ● ●	Tomb Mold(4) x2 [0.4%], Tomb Mold(4) x1 [4%]
Strong Enemies
Watcher Chieftain (Heated Club & Lantern)	3590	-	3859	12024	-	13227	● ● ●	Random gem based on area x1 [25%], Blood Vial x3 [30%], Quicksilver Bullets x4 [25%], Ritual Blood(5) x1 [20%]
Bloodlicker	2620	2751	2816	8029	8430	8832	● ● ●	Random gun type gem x1 [16%]
Labyrinth Warrior (Morning Star)	-	2275	-	-	12346	-	● ● ●	Random gem based on area x1 [25%], Blood Vial x4 [15%], Blood Vial x3 [45%], Inflicted Organ x1 [15%]
Merciless Watcher (Saw)	-	7186	-	-	44989	-	● ● ●	None
Labyrinth Madman (Sickle)	-	2513	-	-	9829	-	● ● ●	Random gem based on area x1 [25%], Quicksilver Bullets x5 [15%], Quicksilver Bullets x4 [45%], Sage's Hair x1 [15%]
Evil Labyrinth Spirit	-	1257	-	-	4475	-	● ● ●	Random gem based on area x1 [8%]
Keeper's Hunting Dog	-	-	1982	-	-	4395	● ● ●	Twin Blood Stone Shards x1 [1.5%], Twin Blood Stone Shards x1 [33%]
Keeper of the Old Lords	-	-	3679	-	-	14901	● ● ●	Random Sharp gem based on area x1 [30%], Blood Vial x3 [30%], Blood Vial x2 [40%]
Merciless Watcher (Mace)	-	-	3859	-	-	13227	● ● ●	Random gem based on area x1 [25%], Blood Vial x3 [30%], Quicksilver Bullets x4 [25%], Ritual Blood(5) x1 [20%]
Labyrinth Warrior (Greatsword)	-	-	2330	-	-	12934	● ● ●	Random gem based on area x1 [25%], Blood Vial x4 [15%], Blood Vial x3 [45%], Inflicted Organ x1 [15%]

Items Treasures

Item	Location	Item	Location
Layer 1
Ritual Blood (4) x2	on top of staircase opposing the lever room	Blood Vial x2	on top of staircase to Upper Floors
Quicksilver Bullets x2	in circular-ish room with lever	Molotov Cocktail x1	top of staircase leading to previous room
Ritual Blood (4) x1	large treasure room in side area before layer boss	Quicksilver Bullets x2	in large treasure room on Upper Floors
Shining Coins x3	large treasure room on Upper Floors	Rope Molotov Cocktail x2	lever room on Lower Floors
Molotov Cocktail x2	large treasure room on Upper Floors	Ritual Blood (4) x2	small room near closed door on Upper Floors
Quicksilver Bullets x1	in large treasure room on Upper Floors	Blood Vial x2	in room with three gun Gravediggers
Quicksilver Bullets x2	between staircases before previous room	Cursed Odd Tempering Damp Blood Gem (5) x1	in room with three gun Gravediggers
Layer 2
Tomb Mold (4) x3	large room next to circular staircase	Tomb Mold (4) x2	large staircase room on Upper Floors
Ritual Blood (4) x5	large room next to circular staircase	Bone Marrow Ash x3	near staircase on Upper Floors
Quicksilver Bullets x4	on circular staricase on Mid Floors	Bold Hunter's Mark x1	in large staircase room leading to Lower Floor close to layer lamp
Quicksilver Bullets x3	top of circular staricase on Mid Floors	Frenzied Coldblood (7) x1	top of large staircase on Lower Floors
Throwing Knife x6	top of circular staircase on Mid Floors	Blood Vial x4	room with trap after circular staircase
Quicksilver Bullets x3	top of circular staricase on Mid Floors	Bone Marrow Ash x3	top of staircase leading to lever room
Bold Hunter's Mark x2	coffin treasure room on Mid Floors	Molotov Cocktail x3	mid stairs leading to Lower Floors and to room with lever
Blood Vial x4	on the top of staircase in lever room	Frenzied Coldblood (7) x1	next to ladder on path to lever room from Upper Floors to Lower Floors
Ritual Blood (5) x1	top of stairs in treasure room on Mid Floors	Frenzied Coldblood (7) x1	first large room in side area before layer boss
Blood Vial x3	on the top of staircase after room with chests	Ritual Blood (5) x3	in side area before layer boss
Ritual Blood (5) x2	large circular room on Upper Floors	Inflicted Organ x2	large treasure room at the end of side area before layer boss
Blood Vial x3	near staircase on Upper Floors
Layer 3
Madman's Knowledge x1	large circular treasure room next to lever room	Frenzied Coldblood (8) x1	large room before treasure room on Upper Floors
Tomb Mold (4) x4	large circular room next to lever room	Blood Vial x3	chest room on Upper Floors
Ritual Blood (5) x3	beginning of large hallway with traps on Lower Floors	Bold Hunter's Mark x2	large treasure room on Upper Floors
Tomb Mold (4) x4	large hallway with traps on Lower Floors	Blood Vial x4	chest room on Upper Floors
Sage's Hair x2	end of large hallway with traps on Lower Floors	Quicksilver Bullets x4	large treasure room on Upper Floors
Inflicted Organ x3	end of large hallway with traps on Lower Floors	Sage's Hair x1	large treasure room on Upper Floors

+ Layer 1 Walkthrough

Step 01: Quickly run forward as soon as you enter this room, because the pool of liquid in front of the door is oil, and there's a Labyrinth Rite Keeper off to the right that's looking to fry you in it. As you start to run forward, a Labyrinth Watcher behind you on the left will start to give chase, but keep going until one of the large pillars in the room is blocking the Rite Keeper's fireballs, so that you can fight the Watcher without worrying about them. Once the watcher has been killed, keep using the pillar for cover as you close in on the Rite Keeper to kill it. Step 02: There's a Watcher's Gravedigger at the base of the stairs just to the right inside this doorway, and if you walk in quietly, you can usually sneak up behind him and use a charged R2. Once he's down, go up the stairs towards the chest, but do not walk straight across the raised motif; there's a hidden pressure plate that will cause four Labyrinth Watchers to appear around you. Step 03: The lever in this room is guarded by a Merciless Watcher who, thanks to your low HR can easily kill you in a single hit. It's recommended to use a Blue Elixir before entering the room and sneak around the outskirts so that you can get behind him and use a charged R2 and Visceral Attack to reduce the risk of getting hit. If you don't have a Blue Elixir you may want to use some ranged attacks to weaken him first, especially if you can use some Bone Marrow Ash-buffed Pistol shots. This fight will teach you to be precise and flawless and abate your hubris, and prepare you for trials to come.

Step 04: A lone Watcher's Gravedigger patrols near the entrance to this room, and while it may be tempting to run in and fight him, doing so would be extremely dangerous. A Labyrinth Right Keeper is standing near the back of the room, and as soon as you enter she'll start launching fireballs at you. Lure the Gravedigger back towards the entrance, so that the tree in the room blocks the incoming fireballs and you can fight him without worrying about them Once he's down, dash to the second tree and use it for cover, and when you see an opening, move around and take out the Rite Keeper. Step 05: There are three Watcher's Gravediggers with guns in this room, so you'll need to always be aware of your surroundings. A number of Labyrinth Watchers also patrol around the bottom of the room - try to take them out as close to the back of the room as possible so that the Gravedigger standing in the middle of the upper part doesn't spot you. If you need to get closer, use the pillars for cover. Once all of the Watchers are dead, go up the stairs. There's another pillar just ahead from the top of the stairs, and a Gravedigger is standing just to the right of it; quickly move forward and stand behind the pillar so that you don't get shot. If you hold that position for a while, the Gravedigger will forget about you, and at that time you can walk around the pillar and land a charged R2. After you've killed him, walk along the back wall of the room to get behind the next Gravedigger and do the same to him, before moving up and finishing off the one in the middle.

Video Guide: Bloodborne Guide - Chalice Running 101 - Defiled Chalice by Souls Pedia

+ Layer 2 Walkthrough

Step 01: The pressure plate in this room will cause a small group of Labyrinth Watchers to appear around you when stepped on, so it's best to stick to the outskirts of the room at all times to ensure that you don't accidentally step on it. The enemies that get summoned by the trap are very aggressive and it can be difficult to evade all of their attacks, so it's better not to take a risk when you have such low health. Step 02: There's a Labyrinth Warrior standing in the middle of this room that you'll need to kill before you can open the chests. If you walk slowly around to the left as soon as you enter you can get round behind him for a charged R2. Killing this enemy as quickly and quietly as possible is quite important, because there's a Labyrinth Madman on the floor just above this area, and if he hears you there's a strong chance that he'll drop down and join in. Step 03: After killing a Labyrinth Watcher near the doorway in this room, you'll need to fight your way past a Labyrinth Madman in order to get the contents of the coffin at the bottom of the stairs. The speed and aggression that these enemies attack with make them extremely difficult to handle when you can't afford to take a single hit. To make the fight easier, you may want to consider using a Blue Elixir so that you can sneak around behind him and use a charged R2 for an early advantage. Alternatively, try to use some ranged attacks to weaken him from the top of the stairs as he approaches. Step 04: It's recommended that you use the elevator in the middle of this room to reach the upper floor, because taking on the next room starting from there is much easier Once you reach the upper walkway, make sure to go around and get the items from the chest before progressing.

Step 05: Opening the door to this room, you'll see a Watcher's Gravedigger with a gun standing in front of you, so walk up behind him slowly and use a charged R2. There are a lot of enemies on the different floors in this room, so you'll need to progress very carefully in order to take them out with as little risk as possible. Look down into the middle of the room and you should see another Gravedigger standing on the middle floor to the right. A large group of Labyrinth Watchers will also start patrolling around the room between the bottom and middle floor. Watch the patrolling group of enemies, and when they're on the opposite side of the room to the Gravedigger, drop down and walk back around behind the Gravedigger, so that you can land a charged R2 from behind. Check the position of the patrolling group again, and then use whichever staircase on this floor is furthest from them to reach the upper floor, where you'll need to take out a lone Labyrinth Watcher. How you deal with the patrolling group is down to personal preference. By staying far away and making use of the different floors you can use Pebbles to lure them one at a time, or you can get above them and use Molotovs to weaken the whole group before moving in. There's another Gravedigger that patrols around the bottom floor as well, so make sure you keep an eye out for him while you're dealing with the Watcher group. Once they've all been killed, go down and follow the path around behind the main stairs to find a Wandering Nightmare, and if you go through the broken bars nearby you'll be able to kill the two hard-at-work Gravediggers. Step 06: At the top of the stairs guarding the lever is a nasty combination of a Labyrinth Madman and a Watcher's Gravedigger with a gun, so you need to lure one of the enemies away. To lure the Gravedigger down, simply stay near the doorway so that he can see you, and then move to the side so that he walks down to investigate, and keep repeating that. Once he's close enough you can use Throwing Knives to weaken him before closing in to kill him Luring the Madman is somewhat easier, because you can just fire a shot in his general direction and he'll come running.

Video Guide: Bloodborne Guide - Chalice Running 101 - Defiled Chalice by Souls Pedia

+ Layer 3 Walkthrough

Step 01: There is a Keeper of the Old Lords and two Keeper's Hunting Dogs patrolling around the middle of this room, so be very careful when you enter. If you stay near the doorway they won't see you, so you can plan your approach from there. The best course of action is to try to separate the two dogs from the Keeper, and you can do that by watching their patrol route, and either walking out far enough to get their attention, or by throwing a Pungent Blood Cocktail. The Blood Cocktail is the better choice if you have one, since it gives you a large window to attack them freely. You can also hit them with a Shaman Bone Blade at that time to have them fight each other, and potentially the Keeper too, if he's close enough. If the Keeper hasn't already gotten involved in the fight, wait for him to get to the furthest point on his route, and then run and hide behind the pillar. Once there you'll be able to wait until he walks past the pillar so that you can run and attack him from behind quickly. If you get into trouble in the fight, remember that you can retreat back to the room with the Lamp and the enemies will not follow you there. Step 02: A large group of Labyrinth Rats are swarming around the entrance to this room, so you may want to use some Molotovs or a Bone Marrow Ash-buffed Cannon shot to thin them out. The most important thing is that you keep near the entrance to the room, because there's a Merciless Watcher around the corner to the right and you don't want him to get involved while you're still fighting the rats.

Step 03: As you approach the doorway leading into this room, try to hug one of the walls so that you can hide to the side of the doorway when you reach it. because there's a large group of Labyrinth Watchers along with a Watcher Gravedigger patrolling near the entrance. By using the door for cover you can watch the movement of the group undetected while you plan how to take them on. They're packed quite close together, so large area-of-effect attacks such as Molotovs and Cannon shots can be effective, or you can wait for them to move past the door, and then run up behind the group and use wide-arcing attacks. If they start to surround you, retreat back to the corridor and funnel them through the doorway. Another Watcher's Gravedigger patrols around a small area near the back of the room, where a number of Labyrinth Watchers also sit dormant. If you hide behind the pillars as you approach this area you can gel close enough to the Gravedigger to attack him from behind as he passes you by. Step 04: Only a single Merciless Watcher with a mace is guarding the chest in this room, but because these enemies are so agile you should still be careful. If you're familiar enough with their attacks then you can interrupt and stagger them for a quick win, but if you want to be safe you can use the trees in the room to bait them into attacking while you circle round and hit them during their recovery period.

Video Guide: Bloodborne Guide - Chalice Running 101 - Defiled Chalice by Souls Pedia