Withermancer

The Withermancer is a Dungeon Mob rarely encountered in The Catacombs - Floor IV and above. It takes 80% reduced magic damage, making magic weapons ineffective against it. It also has two orbiting skulls around it that tracks down players that got close to it, dealing massive damage if the skull connects with them.

Its health, like any other Dungeon Mobs, scale on which floor they spawn in. It can also have modifiers such as Healthy, Flaming, Stormy, Speedy or Fortified. Healthy increases the mob's. Fortified increases the mob's. Flaming makes melee attacks light the player on fire. Speedy makes the mob move much faster. Stormy makes the mob strike lightning on nearby players, dealing true damage.

Trivia

 * The orbiting skulls of the Withermancer appear to reference the Bloons Tower Defense 5 Glaive lord's 4th tier upgrade on upgrade path 1 to have 2 orbiting glaives dealing immense damage to anything that touches them.
 * If you kill the Withermancer before it's skulls his, the skulls will despawn.
 * When it is defeated, it will drop a skull stack like any other dungeon skeleton.