Custom Boss - The Devil

Take a look at a cool custom boss I made with a whole bunch of passive and special abilities! To summon it, you must throw a wither skeleton skull, a wither skeleton spawn egg, and a nether star on top of each other - a particle animation should appear and it will spawn in.ABILITIES:A protective ring of fire surrounding it (If you get too close, you'll take damage)Whatever it steps on turns into magmaIt randomly summons blazes and skeletons with diamond armourIt can charge up a beam of fireHas a lot of healthHas speedRegenerates over time