uncommon lg medium beast 

Perception +8; darkvision, scent (imprecise) 30 feet

Languages Sylvan

Skills Acrobatics +8, Stealth +8, Survival +8

Str +1 Dex +3 Con +2 Int +1 Wis +4 Cha +2

AC  18; Fort +8, Ref +10, Will +11

HP 30

Speed 35 feet

Melee [>] jaws (agile, finesse) +11, Damage 1d6+3 piercing

Occult Innate Spells DC 18; 4th dimension door; Constant (4th) blink

Pack Attack The blink dog's Strikes deal an additional 1d4 damage to creatures within the reach of at least two of the blink dog's allies.

Bestiary 2, page 40. Expanded in LOIL.