Rage Elemental

A full wiki page for this entity is still being generated. Until then, see the recorded facts below.

Sources — 15 recorded facts, by chapter

Chapter 31

A Rage Elemental from the 13th floor is the penalty for any human-born crawler who intentionally relieves themselves outside a designated bathroom, killing the offender and their entire party.

Chapter 38

A Level 93 monster summoned when the dying Jack's urine struck the dungeon wall, coalescing from black and purple smoke.
It stands fifteen feet tall and wide with six legs ending in obsidian claws that are the only corporeal parts of its body, and a flickering horned badger-like skull with fiery red eyes.
It is nearly indestructible, self-healing, and said to dissipate only after claiming 666 souls.
This was the first recorded summoning of a Rage Elemental according to the dungeon's lore description.
It killed Yolanda Martinez and Randall, disintegrating them, and can cast reversed gravity, which it used to flip part of the train and hallway.
Its claws could not penetrate Carl's Protective Shell, and it continued pounding the safe room door after the crawlers escaped inside.

Chapter 39

A level 93 mob with an endless supply of energy that relentlessly smashed at the safe-room door, described as a six-legged black badger-skull thing.
It can be hurt and lost nearly a quarter of its health to the Jug O' Boom, but heals itself, with the napalm-like boom-jug effect slowing the healing.
It dissipates after claiming 666 souls; the thousands of slain grubs did not count toward that number.
It briefly left to slaughter a wave of grubs in under a minute, then returned to thrashing at the door.

Chapter 40

The rage elemental is a level 93 punitive monster with a horned badger skull, six legs, claws, and a Reverse Gravity spell of limited range.
It teleports away when a safe room door is opened, then returns within 75 to 120 seconds, and is unintelligent, embodying single-minded rage.
It was killed not by Carl but by the dungeon itself when tricked into the descending stairwell hole, which dissolves any mob that tries to descend.

Chapter 44

The rage elemental dissolved before Carl and Donut could finish it, triggering an 'Experience Denied' message, leading Carl to suspect it is a trap that splits or explodes on death.