Wyverns are considered the most dangerous of the monsters, due to their flight, rapid fireball breath weapon, and large number of hit points; they are one of the few monsters to actively attack both castles and towns.
Wyverns are considered the most dangerous enemies (apart from other wizards), especially for weak players, due to their flight, rapid fireball breath weapon, and their large number of hit points. Also unique is their aggression, being one of the few monsters to actively attack both castles and towns.