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Multi-headed . When he takes damage on the first time in a round, he grows another head. Every time he grows a head he regains 999 hit points, and has a +5 to passive perception.

Multi-footed. When he takes damage the second time in a round, he grows another foot. Every time he grows a foot he regains 999 hit points, and adds +5 feet to his speed.

multi-handed. when he takes damage the third time in a round he grows another hand every time he grows a hand he regains 999 hit points and has a +5 to attack rolls

Multiattack. He makes as many breath laser attacks as he has heads and makes as many slap attacks as he has hands and makes as many stomp attacks as he has feet.

Slap.Melee Weapon Attack: +100 to hit, reach 100 ft., 1 target. Hit: 999999999999 slapping damage. 

Stomp. meleeWeapon Attack: +100 to hit, reach 100 ft., 1 target. Hit: 999999999999 squishing damage.

breath laser. he breaths a laser that is 60 feet wide and infinitely long. Each creature in the laser must make a dc 100 sex save or take 999d78 radiant damage, or half as much on a failed save.

Attack. When he takes damage he uses multiattack

He has 100 Legendary Actions

Godly power (Costs 1 Actions). He grants himself all the good stuff from the deck of many things, and one creature within 100 miles of him gets all the bad stuff from it.