Overworld boss (The Over Lord)

The overlord can be spawned only in the overworld requiring you to build a 3x3 of diamond blocks and a beacon in the center with a dragon egg on top. This boss can manipulate the terrain around it, summon any monster to attack you, do random attacks from other bosses, and can teleport. As the fight continues he will spawn harder mobs like evokers. His A I should be smarter than any other mob to out think the player. Hope you like my post