Sourcemined
Elden Ring
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BossCaelidSwamp of AeoniaChanged in 1 patchVerified on build 25080141

Cleanrot Knight

Fought in 12 places, from 437 HP to 3,202 HP at Elphael, Brace of the Haligtree · Prayer Room: each placement carries its own area scaling. It takes the most damage from Fire and the least from Holy.

Where you fight it 12

Each place uses its own copy of the boss with that area's scaling. HP and stance as you meet them (first phase, offline, no new game plus).

PlaceHPStanceScaling
Caelid · Cathedral of Dragon Communion43765×1
Caelid · Starscourge Radahn43765×1
Swamp of Aeonia · Aeonia Swamp Shore ×31,05165×2.406
Swamp of Aeonia · Heart of Aeonia ×131,05165×2.406
Swamp of Aeonia · Inner Aeonia ×21,05165×2.406
Altus Plateau · Castellan's Hall ×21,42065×3.25
Altus Plateau · Shaded Castle Inner Gate1,42065×3.25
Liurnia of the Lakes · Stillwater Cave1,98065×4.532
Caelid · Abandoned Cave ×22,10265×4.812
Caelid · War-Dead Catacombs ×33,00465×6.875
Elphael, Brace of the Haligtree · Haligtree Roots ×53,20265×7.328
Elphael, Brace of the Haligtree · Prayer Room3,20265×7.328

Damage negation

How much of each damage type it shrugs off. Lower is better for you; the type it takes most is highlighted.

Standard10%
Slash35%
Strike10%
Pierce0%
Magic20%
Fire-20%
Lightning0%
Holy40%

Flat defense

Subtracted from each hit before negation; it matters most for weak hits. Area scaling raises it along with HP.

Caelid · Cathedral of Dragon Communion, Caelid · Starscourge Radahn

Physical100
Magic100
Fire100
Lightning100
Holy100

Swamp of Aeonia · Heart of Aeonia, Swamp of Aeonia · Aeonia Swamp Shore, Swamp of Aeonia · Inner Aeonia and 1 more

Physical109
Magic109
Fire109
Lightning109
Holy109

Altus Plateau · Castellan's Hall, Altus Plateau · Shaded Castle Inner Gate

Physical111
Magic111
Fire111
Lightning111
Holy111

Liurnia of the Lakes · Stillwater Cave

Physical107
Magic107
Fire107
Lightning107
Holy107

Caelid · War-Dead Catacombs

Physical120
Magic120
Fire120
Lightning120
Holy120

Elphael, Brace of the Haligtree · Haligtree Roots, Elphael, Brace of the Haligtree · Prayer Room

Physical123
Magic123
Fire123
Lightning123
Holy123

Status buildup to proc

Buildup needed for the first proc, and how much more each following proc needs (it grows after every proc, up to the fifth).

Caelid · Cathedral of Dragon Communion, Caelid · Starscourge Radahn

Status1st proc2nd3rd4th
Poison252542999999
Scarlet Rot252542999999
Bleed154252542999
Frost154252542999
Sleep112154252542
MadnessImmune
Death BlightImmune

Swamp of Aeonia · Heart of Aeonia, Swamp of Aeonia · Aeonia Swamp Shore, Swamp of Aeonia · Inner Aeonia and 1 more

Status1st proc2nd3rd4th
Poison5358251,2821,282
Scarlet RotImmune
Bleed3274257151,172
Frost3274257151,172
Sleep238280378668
MadnessImmune
Death BlightImmune

Altus Plateau · Castellan's Hall, Altus Plateau · Shaded Castle Inner Gate

Status1st proc2nd3rd4th
Poison5448341,2911,291
Scarlet Rot5448341,2911,291
Bleed3324307201,177
Frost3324307201,177
Sleep242284382672
MadnessImmune
Death BlightImmune

Liurnia of the Lakes · Stillwater Cave

Status1st proc2nd3rd4th
PoisonImmune
Scarlet Rot5308201,2771,277
Bleed3244227121,169
Frost3244227121,169
Sleep236278376666
MadnessImmune
Death BlightImmune

Caelid · War-Dead Catacombs

Status1st proc2nd3rd4th
Poison6018911,3481,348
Scarlet Rot6018911,3481,348
Bleed3674657551,212
Frost3674657551,212
Sleep267309407697
MadnessImmune
Death BlightImmune

Elphael, Brace of the Haligtree · Haligtree Roots, Elphael, Brace of the Haligtree · Prayer Room

Status1st proc2nd3rd4th
Poison6809701,4271,427
Scarlet Rot6809701,4271,427
Bleed4165148041,261
Frost4165148041,261
Sleep302344442732
MadnessImmune
Death BlightImmune

HP in each journey

At Elphael, Brace of the Haligtree · Prayer Room: new game plus multiplies HP, defense and resistances again on top of the area's scaling.

NGNG+1NG+2NG+3NG+4NG+5NG+6NG+7
3,2023,2503,5753,7373,9004,2254,3884,550

How its AI decides verified

  • It picks attacks by how far you are, with cut-offs at 1 m, 3 m, 3.5 m, 5 m, 5.5 m, 7 m, 7.5 m, 8 m, 9 m, 10 m.
  • It chooses among 48 attack routines; 25 have a cooldown (5–42 s).

Read from the game's AI script for this boss. Which animation each routine plays isn't named yet.

Drops

Chance per kill at 100 Discovery (Arcane and items raise it), and at higher Discovery for the drops it affects.

Caelid · Cathedral of Dragon Communion, Caelid · Starscourge Radahn

Cleanrot Knight drops
ItemChanceAt 200 DiscoveryAt 300 DiscoveryAt 400 DiscoveryKills for 90%
Cleanrot Knight's Sword4%7.69%11.1%14.3%57
Cleanrot Helm3%5.83%8.49%11%76
Cleanrot Armor3%5.83%8.49%11%76
Cleanrot Gauntlets3%5.83%8.49%11%76
Cleanrot Greaves3%5.83%8.49%11%76
Cleanrot Spear1%1.98%2.94%3.88%230

This enemy rolls 6 drop tables on each kill (its own and the ones that follow it), each on its own.

Caelid · War-Dead Catacombs

Cleanrot Knight drops
ItemChanceAt 200 DiscoveryAt 300 DiscoveryAt 400 DiscoveryKills for 90%
Cleanrot Knight's Sword4%7.69%11.1%14.3%57
Cleanrot Helm3%5.83%8.49%11%76
Cleanrot Armor3%5.83%8.49%11%76
Cleanrot Gauntlets3%5.83%8.49%11%76
Cleanrot Greaves3%5.83%8.49%11%76
Cleanrot Spear1%1.98%2.94%3.88%230
Trina's Lily2%3.92%5.77%7.55%114

This enemy rolls 7 drop tables on each kill (its own and the ones that follow it), each on its own.

Caelid · War-Dead Catacombs

Cleanrot Knight drops
ItemChanceAt 200 DiscoveryAt 300 DiscoveryAt 400 DiscoveryKills for 90%
Halo Scythe2%3.92%5.77%7.55%114
Cleanrot Knight's Sword4%7.69%11.1%14.3%57
Cleanrot Helm3%5.83%8.49%11%76
Cleanrot Armor3%5.83%8.49%11%76
Cleanrot Gauntlets3%5.83%8.49%11%76
Cleanrot Greaves3%5.83%8.49%11%76
Trina's Lily2%3.92%5.77%7.55%114

This enemy rolls 7 drop tables on each kill (its own and the ones that follow it), each on its own.

Elphael, Brace of the Haligtree · Haligtree Roots, Elphael, Brace of the Haligtree · Prayer Room

Cleanrot Knight drops
ItemChanceAt 200 DiscoveryAt 300 DiscoveryAt 400 DiscoveryKills for 90%
Cleanrot Knight's Sword4%7.69%11.1%14.3%57
Cleanrot Helm3%5.83%8.49%11%76
Cleanrot Armor3%5.83%8.49%11%76
Cleanrot Gauntlets3%5.83%8.49%11%76
Cleanrot Greaves3%5.83%8.49%11%76
Cleanrot Spear1%1.98%2.94%3.88%230
Miquella's Lily3%5.83%8.49%11%76

This enemy rolls 7 drop tables on each kill (its own and the ones that follow it), each on its own.

Elphael, Brace of the Haligtree · Haligtree Roots

Cleanrot Knight drops
ItemChanceAt 200 DiscoveryAt 300 DiscoveryAt 400 DiscoveryKills for 90%
Halo Scythe2%3.92%5.77%7.55%114
Cleanrot Knight's Sword4%7.69%11.1%14.3%57
Cleanrot Helm3%5.83%8.49%11%76
Cleanrot Armor3%5.83%8.49%11%76
Cleanrot Gauntlets3%5.83%8.49%11%76
Cleanrot Greaves3%5.83%8.49%11%76
Miquella's Lily3%5.83%8.49%11%76

This enemy rolls 7 drop tables on each kill (its own and the ones that follow it), each on its own.

Kill-speed simulator New

How many hits Cleanrot Knight takes with your weapon and stats, in any journey: damage per hit through its defense and negations, stance, and status procs as its thresholds grow.

Simulate Cleanrot Knight

Patch history 1

Every patch that changed its numbers, read from the game's balance file (regulation) of each version.

  1. 1.02.1from 1.00
    • HP291→437
    • Standard negation40%→10%
    • Slash negation40%→35%
    • Strike negation20%→10%
    • Holy negation20%→40%
    • Runes980→990
    • Drop table380,000,000→380,000,010
    • Runes688→618
    • Runes4,719→4,332
    • Runes5,445→6,332
    • Drop table380,000,000→380,000,020
    • Drop table380,000,100→380,000,110
    • Runes9,100→6,332
    • Drop table380,000,100→380,000,120

Other bosses in Caelid