Well, Medusa can hit 100hp+ per turn, but it is like (from tibia wiki)
Melee (0-450),
poisons you 42 hp at start per turn),
5x Terra Strike (21-350, does Life Drain Damage),
Terra Wave (250-500),
Great Smoke Bomb (Paralysis),
Self-Healing (fast)(150-300).
As you can see it is impossible for...