5e SRD >Creatures >

Ooze, Gray Ooze (Advanced)

Family: Ooze - Gray

Large ooze, unaligned

Armor Class 9
Hit Points 114 (12d10 + 48)
Speed 20 ft., climb 20 ft.

16 (+3) 8 (-1) 18 (+4) 1 (-5) 8 (-1) 2 (-4)

Damage Resistances acid, cold, fire
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, prone
Senses blindsight 60 ft. (blind beyond this radius), passive Perception 9
Challenge 5 (1,800 XP)

Special Traits

  • Amorphous. The ooze can move through a space as narrow as 1 inch wide without squeezing.
  • Corrode Metal. Any nonmagical weapon made of metal that hits the ooze corrodes. After dealing damage, the weapon takes a permanent and cumulative -1 penalty to damage rolls. If its penalty drops to -5, the weapon is destroyed. Nonmagical ammunition made of metal that hits the ooze is destroyed after dealing damage. The ooze can eat through 3-inch-thick nonmagical metal in 1 round.
  • False Appearance. While the ooze remains motionless, it is indistinguishable from an oily pool or wet rock.


  • Multiattack. The ooze makes three Pseudopod attacks.
  • Pseudopod. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage plus 7 (2d6) acid damage, and if the target is wearing nonmagical metal armor, its armor is partly corroded and takes a permanent and cumulative -1 to the AC it offers. The armor is destroyed if the penalty reduces its AC to 10.
Section 15: Copyright Notice

City of Brass ©2018 Frog God Games; Authors: Casey Christofferson and Scott Greene