rare n medium animal 

Perception +9; motion sense (precise) 30 feet

Skills Acrobatics +9, Athletics +11, Stealth +9

Str +4 Dex +4 Con +2 Int -4 Wis +2 Cha -2

AC  19; Fort +9, Ref +11, Will +7

HP 45

Speed 35 feet

Melee [>] jaws +11, Damage 1d8+4 piercing plus 1d6 acid

Gore Spray [R] (acid) Trigger A creature critically hits a mutant wolf while adjacent to it. Effect The wound causes gore to spray from a ruptured pustule. The triggering creature takes 3d6 acid damage (DC 19 basic Reflex save). This occurs even if the attack kills the wolf.

Tear [>] Trigger The wolf dealt damage to a creature with its jaws during the previous action. Effect The wolf tears at the creature's flesh, dealing 1d6+2 slashing damage and 1 persistent acid damage.

The Fall of Plaguestone, page 27.