Pudding, Black (CR 7)

Huge Ooze
Alignment: Always neutral
Initiative: -5 (Dex)

AC: 3 (-2 size, -5 Dex), touch 3, flat-footed 3
Hit Dice: 10d10+60 (115 hp)
Fort +9, Ref -2, Will -2
Speed: 20 ft., climb 20 ft.
Space: 15 ft./10 ft.
Base Attack +7; Grapple +18
Attack: Slam +8 malee
Full Attack: Slam +8 melee
Damage: Slam 2d6+4 and 2d6 acid
Special Attacks/Actions: Acid, constrict 2d6+4 plus 2d6 acid, improved grab
Abilities: Str 17, Dex 1, Con 22, Int -, Wis 1, Cha 1
Special Qualities:
Feats: -
Skills: Climb +11
Advancement: 11-15 HD (Huge); 16-30 HD (Gargantuan)
Climate/Terrain: Underground
Organization: Solitary
Treasure/Possessions: None

Source: Monster Manual

Improved Grab (Ex): To use this ability, the black pudding must hit with its slam attack. If it gets a hold, it can constrict.

Acid (Ex): The pudding secretes a digestive acid that dissolves organic material and metal quickly. Any melee hit deals acid damage. The pudding's acidic touch deals 50 points of damage per round to wood or metal objects. The opponent's armor and clothing dissolve and become useless immediately unless they succeed at Reflex saves (DC 19). The acid can dissolve stone, dealing 20 points of damage per round of contact.

A metal or wooden weapon that strikes a black pudding also dissolves immediately, unless it succeeds at a Reflex save (DC 19).

Constrict (Ex): A black pudding deals automatic slam and acid damage with a successful grapple check. The opponent's clothing and armor suffer a -4 penalty to Reflex saves against the acid.

Split (Ex): Weapons deal no damage to a black pudding. Instead, the creature splits into two identical puddings, each with half the original's hit points (round down). A pudding with only 1 hit point cannot be further split.

Blindsight (Ex): An ooze's entire body is a primitive sense organ that can ascertain prey by scent and vibration within 60 feet.

Black puddings attack by grabbing and squeezing their prey.