Defiler
Defiler can be found in the following locations: Pits of Inferno, The Inquisition Quest (The Vats) and Grounds of Plague.
Defiler has 3650 hitpoints. It is immune to earth damage. It is strong against energy and ice damage. It is weak against fire damage. It can neither be summoned nor convinced.
Defiler yields 3700 base experience points. Its loot can include small diamond, small ruby, gold coin, small emerald, talon, platinum coin, yellow gem, green gem, red gem, blue gem, soul orb, death ring, demonic essence, glob of acid slime, and glob of tar.