End islands the purple nightmare (boss)

Is summed by placing 4 blocks of obsidian and 4 end crystals on them it has 3 times the amount of health as the ender dragon and immune to fire and explosions fire and explosions heal the boss it shoots a beacon beam that's purple out of its mouth leaving dragons breath everywhere it hits and it peirces all armor and it dose half a heart every 1 second can only be summoned on end islands and gives an achievement called hi, bye and drops heart of ender and makes it so no end mobs attack you