Sourcemined
Elden Ring
BossLake of RotCaelidChanged in 2 patchesVerified on build 25080141

Putrid Tree Spirit

Fought in 3 places, from 11,191 HP to 19,880 HP at Elphael, Brace of the Haligtree · Prayer Room: each place carries its own area scaling. It takes the most damage from Fire and the least from Holy.

HP (NG)
11,191–19,880
HP in NG+7
28,250
Stance
120
Weakest to
Fire -20%
Resists most
Holy 40%
Nearest grace
Prayer Room

How Putrid Tree Spirit fights

At Elphael, Brace of the Haligtree · Prayer Room, its toughest placement: 19,880 HP.

Phases by HP verified

70%60%
  • At 70% HP or less: 2 projectiles becomes available.

Attacks from the game files

The attacks it picks on its own, most used first. Damage is the attack power of its strongest hit at this placement, before your defense and negation.

AttackParryBlockDamage
Strike (1)1 hit · first hit after 1.1 sNoYes948strike
Strike (2)1 hit · first hit after 1.3 sNoYes948strike
3-hit strike combo (head)3 hits · first hit after 2.2 sNoYes1,176strike
2-hit strike combo (1)2 hits · first hit after 1.2 sNoYes948strike
2 projectiles2 hits · first hit after 1.5 sNoYes1,252holy
Strike (tail) (1)1 hit · first hit after 2.6 sNoYes1,062strike
Strike (3)1 hit · first hit after 1.2 sNoYes1,062strike
Grab (1)2 hits · first hit after 2.3 sNoNo2,6751,461 holy · 1,214 physical, if it catches you
Projectile (1)1 hit · first hit after 3.2 sNoYes1,252holy
Projectile (2)1 hit · first hit after 4.0 sNoYes683holy
Strike (4)1 hit · first hit after 1.7 sNoYes1,176strike
Strike (5)1 hit · first hit after 1.2 sNoYes948strike
2-hit strike combo (2)2 hits · first hit after 0.7 sNoYes948strike
16 more attacks it chains after another one
AttackParryBlockDamage
Strike (6)1 hit · first hit after 0.9 s · after Strike (8) and Strike (2) or 1 moreNoYes948strike
Strike (7)1 hit · first hit after 2.3 s · after Strike (9) and Strike (6) or 1 moreNoYes1,062strike
Strike (tail) (2)1 hit · first hit after 1.5 s · after Strike (6) and Strike (1)NoYes1,024strike
Grab (2)2 hits · first hit after 2.5 s · after Strike (7) and Projectile (2)NoNo2,6751,461 holy · 1,214 physical, if it catches you
Strike (big tail) (1)1 hit · first hit after 1.9 s · after Strike (4)NoYes1,176strike
Strike (8)1 hit · first hit after 2.2 s · after Strike (big tail) (2) and Strike (3)NoYes1,176strike
Strike (big tail) (2)1 hit · first hit after 2.3 s · after Strike (big tail) (1) and Strike (3)NoYes1,176strike
Strike (9)1 hit · first hit after 0.9 s · after Strike (tail) (2) and Strike (6) or 1 moreNoYes948strike
Grab (3)2 hits · first hit after 2.6 s · after Grab (4) and 3-hit strike combo (head)NoNo2,6751,461 holy · 1,214 physical, if it catches you
Grab (4)2 hits · first hit after 2.3 s · after Grab (1) and 3-hit strike combo (head)NoNo2,6751,461 holy · 1,214 physical, if it catches you
Projectile (3)1 hit · first hit after 1.3 s · after Grab (3) and Grab (1) or 6 moreNoYes1,252holy
Grab (5)2 hits · first hit after 2.8 s · after Grab (6) and Projectile (2)NoNo2,6751,461 holy · 1,214 physical, if it catches you
Grab (6)2 hits · first hit after 2.5 s · after Grab (2) and Projectile (2)NoNo2,6751,461 holy · 1,214 physical, if it catches you
Grab (7)2 hits · first hit after 2.6 s · after Grab (5) and 3-hit strike combo (head)NoNo2,6751,461 holy · 1,214 physical, if it catches you
Grab (8)2 hits · first hit after 3.0 s · after Grab (9) and 3-hit strike combo (head)NoNo2,6751,461 holy · 1,214 physical, if it catches you
Grab (9)2 hits · first hit after 2.6 s · after Grab (7) and 3-hit strike combo (head)NoNo2,6751,461 holy · 1,214 physical, if it catches you

Parry: whether a parry works on it (for combos, which hits). Block: whether a shield stops it; grabs go through.

Attack choice by distance from its battle script

How often it opens with each attack at each range, from its main weight tables (it switches between 5 sets of tables by state; the main one is shown).

  • Strike (1)
  • Strike (2)
  • 3-hit strike combo (head)
  • 2-hit strike combo (1)
  • 2 projectiles
  • Other attacks and moves
Show as a table
DistanceMost likely picks
5–15 mStrike (1) 18% · 2-hit strike combo (1) 18% · Strike (2) 15%
15 m +Moving or other actions 25% · Strike (2) 25% · 3-hit strike combo (head) 25%
Attacks
29
With a cooldown
13 7–60 s
Walk in before attacking
6 from up to 40 m

What hurts it most

  1. Fire-20% +20%
  2. Standard0%
  3. Slash0% ±0
  4. Strike0% ±0
  5. Pierce0% ±0
  6. Magic20% −20%
  7. Lightning20% −20%
  8. Holy40% −40%

Negation (lower lets more through), and how much more or less damage that type deals than Standard does.

Status procs to kill it

Status1st procHP per procProcs to kill
Bleed6803,08278,785 buildup
Frost3022,018108,954 buildup
Poison1,4631,8821120,663 buildup
Scarlet RotImmune

From full HP with that status alone; thresholds grow after each proc. Frostbite's extra 20% damage taken isn't counted.

Attacks, their hits, parry and block, grabs and damage are read from the boss's animation events and attack data; when it picks them, from its battle script. Attack names follow the names players commonly use; the rest are described from their hits.

Where you fight it 3

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
Lake of Rot · Grand Cloister11,191120×4.125
Caelid · War-Dead Catacombs18,144120×6.688
Elphael, Brace of the Haligtree · Prayer Room19,880120×7.328

Damage negation

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

Standard0%
Slash0%
Strike0%
Pierce0%
Magic20%
Fire-20%
Lightning20%
Holy40%

Flat defense

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

Lake of Rot · Grand Cloister

Physical114
Magic114
Fire114
Lightning114
Holy114

Caelid · War-Dead Catacombs

Physical120
Magic120
Fire120
Lightning120
Holy120

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).

Lake of Rot · Grand Cloister

Status1st proc2nd3rd4th
Poison1,1891,6461,6461,646
Scarlet Rot1,1891,6461,6461,646
Bleed5538431,3001,300
Frost246288386676
SleepImmune
MadnessImmune
Death BlightImmune

Caelid · War-Dead Catacombs

Status1st proc2nd3rd4th
Poison1,2361,6931,6931,693
Scarlet Rot1,2361,6931,6931,693
Bleed5758651,3221,322
Frost255297395685
SleepImmune
MadnessImmune
Death BlightImmune

Elphael, Brace of the Haligtree · Prayer Room

Status1st proc2nd3rd4th
Poison1,4631,9201,9201,920
Scarlet RotImmune
Bleed6809701,4271,427
Frost302344442732
SleepImmune
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
19,88020,17922,19623,20524,21426,23227,24128,250

Kill-speed simulator New

How many hits Putrid Tree Spirit 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 Putrid Tree Spirit

Patch history 2

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

  1. 1.02.1from 1.00
    • Runes8,190→26,460
    • Runes3,998→11,193
    Every changed value (4)
    ValueBeforetoAfterChange
    Key changes 2
    Runes8,19026,460+18,270+223%
    Runes3,99811,193+7,195+180%
    Linked data 2
    Name ID×3 variants904,6400changed
    SpEffect ID [31]-14,301changed
  2. 1.12.1from 1.10
      Every changed value (2)
      ValueBeforetoAfterChange
      Damage 1
      HP Burn Damage %×3 variants0100+100
      Linked data 1
      DLC Completion SpEffect ID×3 variants0-1changed

    Other bosses in Lake of Rot