Wyvern

A winged reptilian creature resembling a dragon, though smaller and fiercer, with a deadly venomous stinger on its tail and a relentless predatory nature.

Vitality 36, Protection 9, Defense +3, Resistance +2, Speed 60 feet (flying),
Attacks: Claws +3 (1d12) , Bite +3 (1d10) or Stinger +3 (1d8)

Poison (+4): A creature that is bitten suffers the effect of a neurotoxic poison of potency 4.