Note: This is not an enraged ender man!Here is my idea:This will be an ender man that is both burning and invisible. You have to look for the wandering flame to strike it. It would set fire to every block it teleports to, which could stay burning until the boss is slain. It would have 300 health and spawn in both the over-world and the end. It could drop: 1-3 dragon stone fragments (common), 8-24 ender pearls (common), 1-4 shiny pearls (common), 4-6 shiny pearls (uncommon), 24-64 ender pearls (uncommon), 1-6 ender eyes (uncommon), dirt destroyer (rare), vault voucher (rare), stable voucher (rare) and a dragon egg (extremely rare: 1 in 200000 chance).I hope you like my suggestion!