Test Subject
BossHealth
100/111 HPAlways 100. 111 from Ascension 8.
Gold
10075 goldAlways 100. 75 from Ascension 3.Always 75. 100 below Ascension 3.
Found in
GloryBoss, alone, 1 in 3 from the boss pool.

20/22
100/100/111/111Test Subject
1
2
20/22
14/16
1Vulnerable

1Painful Stabs
1Nemesis
10/11×N
10/11×3
45
×33Burn
2/3Strength
1
2
1
2
1
2
1
2
1
2
1
2
2
1
2
1
2
1
2
1
2
1
2
1
Turn 1
How to beat Test Subject
Skills are the trap: each one feeds Enrage across all 600 HP, so keep them rare and find Block elsewhere.
Respawn turn: deals no damage, a free setup turn.
Form two: block all of Multi-Claw or eat a Wound per unblocked hit.
Form three: hits on an Intangible turn do 1 damage, so burst on the other turns, block 45 for Big Pounce, and play Burns before turn end.
Notes
- Glory boss; the third death is final.
- Its name's number is 8 plus a save-file count of its knockdowns.
- The compendium hides Bite, Skull Bash and Lacerate; Big Pounce ignores Deadly Enemies.
Changes by version
- Added fire to Test Subject burn animation
- Fixed Test Subject starting phase 2 with extra Strength when killed by Sleight of Flesh via Enfeebling TouchBug fixv0.107.1Fixed several Test Subject issuesBug fixv0.107.1Corrected Test Subject HP scaling in multiplayer
- Fixed Test Subject starting phase 2 with extra strength if it is killed by Sleight of Flesh via Enfeebling TouchBug fixBeta branchFixed a few issues with Test Subject in the BestiaryBug fixBeta branchCorrected Test Subject HP scaling in multiplayer
All 34 patch notes31 older
- Added Test Subject burn animation
- Phase 2 no longer has the Pounce move, instead will repeat Multi Claw move every turn
- Phase 3 Lacerate damage decreased from 11 to 10 (12 to 11 with Ascension)
- Buffed Test Subject phase 2 initially hits an additional time
- Phase 1's Skull Bash move damage decreased from 16 to 14 (18 to 16 with Ascension); Vulnerable applied decreased from 2 to 1; Phase 2 now starts with Multi Claw move instead of Pounce; Phase 3 now applies Intangible at end of turn instead of startBug fixPoisonIntangibleInternal playtestTest Subject's Phase 3 now takes full Poison damage on non-Intangible turns
- Reworked Test Subject
- Made Test Subject opaque again if it is killed while it has Intangible
- Fixed Test Subject staying semi-transparent after losing Intangible while stunned
- Reworked Test Subject
- A10 Test Subject no longer disappears if it is killed by Doom on its 3rd form
- Test Subject monster's Painful Stabs power now properly gives Wound cards even when its owner dies to Thorns powerBug fixInternal playtestTest Subject no longer briefly fades out when transitioning between phases
- Buffed Test SubjectBug fixInternal playtestFixed softlock when viewing the victory screen of a run against Test Subject
- Removed speech line from Test Subject boss
- Added SFXSoundInternal playtestAdded custom Test Subject BGM
- Reworked Test Subject
- Fixed an issue where Test Subject's Malleable power wasn't giving it enough block after multi-hit attacks
- Fixed Test Subject being unhittable if it is killed while it is stunned by Tanx's Whistle card
- Fixed an issue where, after shrinking Test Subject in phase 1 or 2 with Beetle Juice and then killing it, it would stay visually shrunk
- Fixed issue where Lightning orb would softlock on dead Test SubjectBug fixInternal playtestPlaying an AOE attack while Test Subject is downed no longer makes the attack stuck
- Test Subject now gets bigger as he respawns
- Test Subject boss now uses correct death/revival animation in multiplayer
- Added Test Subject boss animations
- Fixed an issue that caused Test Subject to softlock if you killed him with Doom before he reached his final form
- Deprecated Test Subject's Mutating Ichor card
- Fixed a softlock when killing Test Subject by discarding a hand full of Sly cards via Calculated Gamble
- Test Subject can no longer be hit by AOE when Adaptable activates
- Reworked enemies/combats
- Test Subject no longer shuffles status cards to the bottom of the draw pile
- Now adds cards to Draw Pile instead of handBug fixInternal playtestFix misaligned Block indicator when hitting the Test Subject many times in sequence
- Test Subject now has Malleable instead of Mutegenic AdaptationBug fixInternal playtestTest Subject's new status is Mutating Ichor: if this is in your hand at the end of your turn, Test Subject gains 1 strength
- Added to the game
Internal playtest notes are from before the Early Access release. Names and numbers in them can differ from the game today.

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