uncommon n large mindless ooze 

Perception +10; motion sense (imprecise) 60 feet

Skills Thievery +17

Str +4 Dex +2 Con +7 Int -5 Wis +0 Cha -5

Motion Sense A vaultbreaker ooze can sense nearby motion through vibration and air movement.

Treasure Sense The vaultbreaker ooze's metallic plasm alerts it to the presence of metals with the precious trait (including gold and platinum) within 30 feet.

AC  13; Fort +17, Ref +10, Will +8

HP 150; Immunities acid, mental, critical hits

Liakrukiar [R] (manipulate, polymorph, transmutation) Trigger A creature Strikes the vaultbreaker ooze; Effect The ooze's outer plasm hardens into a protective shell of precious metals. Until the start of its next turn, it gains resistance 5 to physical damage (except adamantine), it has a –5-foot penalty to its Speed, and its pseudopod Strikes gain the versatile.

S or P weapon trait.

Speed 20 feet, climb 10 feet

Melee [>] pseudopod +17, Damage 1d8+8 bludgeoning plus 2d6 acid

Engulf [>>] DC 23, 2d8+9 acid, Escape DC 23, Rupture 14 (19 when using Liakrukiar)

Form Tool [>>] (manipulate, polymorph, transmutation) The vaultbreaker ooze instinctually shapes its pseudopod into a key, lockpick, or tool required to bypass a locking mechanism; it uses this pseudopod as thieves' tools to Pick a Lock or Disable a Device.

AoE2, page 87.