Minecraft Dungeons:Necromancer

Necromancers are undead hostile mobs found in Minecraft Dungeons that can summon undead mobs. They look similar to the Nameless One but are slightly shorter, and wear a black robe with blue markings.

Spawning
In Default difficulty,The Necromancer only can be found in Desert Temple,in Adventure difficulty can be found in Cacti Canyon and in Apocalypse difficulty can be found in Creeper Woods and Creepy Crypt

Appearance
The Necromancer is a large skeleton that wears blue turfs, has greenish eyes, and wears a gold crown-like headwear. Necromancers always hold staffs.

Behavior
Necromancers use their staffs to summon undead mobs such as zombies and skeletons to attack players.

Necromancers also rapidly fire damaging bolts or beams from their staffs to players.

Trivia

 * Internally, the Necromancer is known as the Summoner