Wyverns - The Witcher 3

Most dangerous of all are the royal wyverns. Or, as they're called in some circles, the royal pains in the arse.
– Albina Tottelkampf, lecturer in natural sciences at Aretuza

Wyverns are often mistaken for dragons, and, though they are much smaller than their more famous kin and do not breathe fire, they are likewise extremely dangerous monsters. Especially feared are the so-called royal wyverns who, like their namesake monarchs, are exceptionally ornery and extremely deadly.

A wyvern will usually attack from the air, aiming to knock its prey down with its wings. After landing it will attack with its tooth-filled beak, trying to draw attention away from its most dangerous weapon: the stinger found at the end of its long tail. A strike from this carries the risk of poisoning from powerful toxins. Even a witcher's body experiences wrenching pain when injected with wyvern venom, and so it is worth preparing oneself with suitable potions ahead of time.