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+ Table of Contents

Basic Information

Upgrade Table

Drop Rate from Chalice Dungeon Bosses

Blood Stones: Drop Pools

Basic Information

Once you have access to the Hunter's Dream, you can approach the Workbench and interact to upgrade your weapons. You'll need Blood Echoes and Blood Stones. Select "Fortify" from the menu to begin upgrading. This is the single most important aspect of character progression, so choose wisely when spending Blood Stones. There are four levels of Blood Stone: Blood Stone Shard, Twin Blood Stone Shards, Blood Stone Chunk, and Blood Rock.

Icon	Name	Prerequisite	Max Level	Availability
	Blood Stone Shard	+0	+3	Treasure in Central Yharnam, Cathedral Ward, Old Yharnam; Dropped by Large Huntsman (Torch and Saw), Large Huntsman (Spear), Scourge Beast, Large Huntsman (Plow), Church Giant (Axe), Church Giant (Wrecking Ball), Kidnapper, Hunting Dog, Snake Ball, Church Giant (Bare Fists), Large Snake Ball, Giant Lost Child, Wandering Nightmare; Keeper's Hunting Dog, Undead Giant (Club & Hook), Undead Giant (Twin Curved Blades); Sold by Bath Messengers, Insight Bath Messengers [More...]
	Twin Blood Stone Shards	+3	+6	Treasure in Cathedral Ward, Hemwick Charnel Lane, Yahar'gul, Unseen Village (Evening), Forbidden Woods; Dropped by Kidnapper, Large Huntsman (Torch and Saw), Large Huntsman (Plow), Church Giant (Bare Fists), Large Snake Ball, Hunting Dog, Lost Child of Antiquity, Scourge Beast (Skeletal), Scourge Beast, Church Giant (Flame Fist), Large Wandering Nightmare, Wandering Nightmare, Keeper's Hunting Dog, Undead Giant (Club & Hook), Undead Giant (Twin Curved Blades); Sold by Bath Messengers, Insight Bath Messengers [More...]
	Blood Stone Chunk	+6	+9	Treasure in Forbidden Woods , Forsaken Cainhurst Castle, Yahar'gul, Unseen Village (Blood Moon), Lecture Building 2F, Nightmare of Mensis; Dropped by Lost Child of Antiquity, Scourge Beast (Skeletal), Scourge Beast, Church Giant (Flame Fist), Wandering Nightmare, Large Wandering Nightmare, Keeper's Hunting Dog, Undead Giant (Twin Curved Blades), Undead Giant (Club & Hook), Large Snake Ball; Sold by Insight Bath Messengers [More...]
	Blood Rock	+9	+10	Treasure in Nightmare of Mensis; Chests in Depth 5 Root Chalice Dungeons [Limited]: Pthumeru Ihyll Root Chalice, Sinister Pthumeru Ihyll Root Chalice, Lower Ailing Loran Root Chalice, Sinister Lower Loran Root Chalice, Isz Root Chalice, Sinister Isz Root Chalice; Dropped by End Bosses in Depth 5 Root Chalice Dungeons [Unlimited]: Pthumeru Ihyll Root Chalice, Sinister Pthumeru Ihyll Root Chalice, Lower Ailing Loran Root Chalice, Sinister Lower Loran Root Chalice, Isz Root Chalice, Sinister Isz Root Chalice [More...]

Upgrade Table

Upgrade level	/ / / /	/ / /	Blood Gem Sockets
Upgrade +1	⇧ / ⇧ / ⇧ / ⇧ / ⇧	⇧ / ⇧ / ⇧ / ⇧	1 / 3	1 / 1	3	-	-	-	varies
Upgrade +2	⇧ / ⇧ / ⇧ / ⇧ / ⇧	⇧ / ⇧ / ⇧ / ⇧	1 / 3	1 / 1	5	-	-	-	varies
Upgrade +3	⇧ / ⇧ / ⇧ / ⇧ / ⇧	⇧ / ⇧ / ⇧ / ⇧	2 / 3	1 / 1	8	-	-	-	varies
Upgrade +4	⇧ / ⇧ / ⇧ / ⇧ / ⇧	⇧ / ⇧ / ⇧ / ⇧	2 / 3	1 / 1	-	3	-	-	varies
Upgrade +5	⇧ / ⇧ / ⇧ / ⇧ / ⇧	⇧ / ⇧ / ⇧ / ⇧	2 / 3	1 / 1	-	5	-	-	varies
Upgrade +6	⇧ / ⇧ / ⇧ / ⇧ / ⇧	⇧ / ⇧ / ⇧ / ⇧	3 / 3	1 / 1	-	8	-	-	varies
Upgrade +7	⇧ / ⇧ / ⇧ / ⇧ / ⇧	⇧ / ⇧ / ⇧ / ⇧	3 / 3	1 / 1	-	-	3	-	varies
Upgrade +8	⇧ / ⇧ / ⇧ / ⇧ / ⇧	⇧ / ⇧ / ⇧ / ⇧	3 / 3	1 / 1	-	-	5	-	varies
Upgrade +9	⇧ / ⇧ / ⇧ / ⇧ / ⇧	⇧ / ⇧ / ⇧ / ⇧	3 / 3	1 / 1	-	-	8	-	varies
Upgrade +10	⇧ / ⇧ / ⇧ / ⇧ / ⇧	⇧ / ⇧ / ⇧ / ⇧	3 / 3	1 / 1	-	-	-	1	varies
Total	AR Increase	Scaling Increase	Right Hand	Left Hand	16	16	16	1	cost

Drop Rate from Chalice Dungeon Bosses

Area								Nothing
Depth 1 (upper floor, middle floor)	16%	17%	-	-	-	-	-	67%
Depth 1 (lower floor, bottom floor)	8%	25%	-	-	-	-	-	67%
Depth 2 (upper floor, middle floor)	-	-	25%	8%	-	-	-	67%
Depth 2 (lower floor, bottom floor)	-	-	21%	13%	-	-	-	67%
Depth 3 (upper floor, middle floor)	-	-	-	27%	6%	-	-	67%
Depth 3 (lower floor, bottom floor)	-	-	-	25%	8%	-	-	67%
Depth 4 (upper floor, middle floor)	-	-	-	-	29%	4%	-	67%
Depth 4 (lower floor, bottom floor)	-	-	-	-	27%	6%	-	67%
Depth 5 (upper floor, middle floor)	-	-	-	-	17%	24%	-	59%
Depth 5 (lower floor, bottom floor)	-	-	-	-	9%	33%	8%	50%
Note: The percentages shown here are base values only and do not take into account any additional drop rate modifiers from "Eye" Runes or the "Milkweed" Oath Rune.

Blood Stones: Drop Pools

For the most part, items dropped by enemies are decided simply by a random percent chance from that enemy's own list of potential items. When an enemy appears in a dungeon, it sometimes has one or more of its drops determined by the dungeon's Depth, in order to give better rewards for more challenging dungeons. Such items are selected from a pool of similar items, and these pools are shown here. The upshot of this is that an enemy might drop a Blood Stone Shard in the Depth 1 Pthumerian Root Labyrinth, but would drop a Blood Stone Chunk instead in a Depth 5 Pthumeru Ihyll dungeon.

Pool Name	Depth 1		Depth 2		Depth 3		Depth 4		Depth 5
Blood Stone Shard Pool A		Blood Stone Shard Depth 1		Blood Stone Shard Depth 2		Blood Stone Shard Depth 3		Twin B. Stone Shards Depth 4		Twin B. Stone Shards Depth 5
Blood Stone Shard Pool B		Blood Stone Shard Depth 1		Blood Stone Shard Depth 2		Twin B. Stone Shards Depth 3		Twin B. Stone Shards Depth 4		Twin B. Stone Shards Depth 5
Blood Stone Shard Pool C		Blood Stone Shard Depth 1		Blood Stone Shard Depth 2		Twin B. Stone Shards Depth 3		Twin B. Stone Shards Depth 4		Blood Stone Chunk Depth 5

Enemies List Per Pool [% Drop Rate]
Blood Stone Shard Pool A
Large Snake Ball: x1 [50%]
Hunting Dog: x1 [30%]
Snake Ball: x1 [4%]
Blood Stone Shard Pool B
Kidnapper: x1 [45%], x2 [25%]
Keeper's Hunting Dog: x1 [33%]
Large Snake Ball: x1 [18%]
Undead Giant (Twin Curved Blades): x2 [15%]
Undead Giant (Club and Hook): x2 [15%]
Hunting Dog: x1 [4%]
Blood Stone Shard Pool C
Keeper's Hunting Dog: x1 [1.5%]
Undead Giant (Twin Curved Blades): x2 [5%]
Undead Giant (Club and Hook): x2 [5%]
Large Snake Ball: x1 [1.5%]

Chalice Dungeons Depth [Preset & Root]
Depth 1 (Preset) Pthumerian Labyrinth & (Root) Pthumerian Labyrinth
Depth 2 (Preset) Central Pthumerian Labyrinth, Hintertomb Labyrinth & (Root) Central Pthumerian Labyrinth, Hintertomb
Depth 3 (Preset) Lower Pthumerian Labyrinth, Lower Hintertomb Labyrinth & (Root) Lower Pthumerian Labyrinth, Sinister Lower Pthumerian Labyrinth, Lower Hintertomb, Sinister Hintertomb
Depth 4 (Preset) Cursed Pthumerian Defilement, Ailing Loran & (Root) Pthumerian Defilement, Ailing Loran
Depth 5 (Preset) Pthumeru Ihyll, Lower Loran, Isz Gravestone & (Root) Pthumeru Ihyll, Sinister Pthumeru Ihyll, Lower Loran, Sinister Lower Loran, Isz Gravestone, Sinister Isz Gravestone