Ender Guardian boss

A boss you can acess after you defeat the ender dragon. It has 3 phases. One where it resembles an enderman with human proportions, wings, and a sword. It can shoot projectiles from its head in this phase that cause levitation. Second phase will have it loose the wings but gain another sword and becomes more aggressive. Third and final phase has you teleported to a massive battlefield with a giant version of the Ender Guardian in the middle. In this phase it will shoot massive projectiles from its head, cause shockwaves that you have to jump over, try to crush you with its arms, will summon lightning to strike random parts of the arena, and shoot a laser from its mouth.