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Bog Scum

This thick green blob lays on top of the water, devouring everything it touches.

Bog Scum CR 13

XP 25,600
N Huge ooze (aquatic)
Init -2; Senses blindsight 120 ft.; Perception -1


AC 6, touch 6, flat-footed 6 (-2 Dex, -2 size)
hp 232 (16d8+160)
Fort +14, Ref +3, Will +4
Defensive Abilities ooze traits; Immune acid, slashing and piercing damage; Resist cold 5
vulnerable to fire


Speed 40 ft., climb 20 ft., swim 40 ft.
Melee slam +18 (2d6+4 plus 2d8 acid and grab)
Space 15 ft.; Reach 10 ft.
Special Attacks constrict (2d6+4 plus 2d8 acid)


Str 26, Dex 7, Con 29, Int 5, Wis 8, Cha 1
Base Atk +12; CMB +22 (+26 grapple); CMD 30 (34 vs grapple, can’t be tripped)
Skills Swim +24
Feats Cleave, Great Cleave, Improved Natural Attack (slam), Power Attack, Toughness, Vital Strike
SQ amphibious, sticky


Acid (Ex)

The bog scum secretes a digestive acid that dissolves organic material and metal quickly, but does not affect stone. Each time a creature suffers damage from a bog scum’s acid, the creature’s clothing and armor takes an equal amount of damage from the acid. A DC 25 Reflex save prevents damage to clothing and armor. A metal or wooden weapon that strikes the bog scum takes 2d8 acid damage unless the weapon’s wielder succeeds on a DC 25 Reflex save. If the bog scum remains in contact with a wooden or metal object for 1 full round, it inflicts 25 points of acid damage (no save) to the object.

The acid DCs are Constitution-based. The acid damage is not doubled with a successful Vital Strike.

Sticky (Ex)

Bog scum is extremely sticky and difficult to get away from. The bog scum gains a +4 racial bonus on grapple checks.