Minecraft Dungeons:Enderman

An endermen is a hostile mob that acts as a mini-boss in Minecraft Dungeons and has the ability to teleport.

Spawning
The Enderman spawns in Default difficulty as a mini-boss in Soggy Swamp, and the Desert Temple. In Adventure difficulty, it would spawn sometimes in the Creeper Woods and the Cacti Canyon, and in Apocalypse, it would spawn sometimes in the Redstone Mines and the Fiery Forge.

Behavior
Endermen teleport away after taking damage and can damage players heavily.

Endermen can't teleport inside walls. They also can "hide" within teleportation and not appear right away.

Drops

 * Slayer Crossbow