Chaos Armor

Armor (any), legendary (requires attunement) This armor swirls with a multiverse of intoxicating colors. While wearing it, any critical hit against you awakens the armor, you roll a d20 to create a random effect. Each time you roll, the new effect replaces any previous effect. Unless otherwise stated, the armor returns to its normal state when you finish a short or long rest. Chaos Armor Effects d20 Effect 1 Roll on this table at the start of each of your turns for the next minute ignoring this result on subsequent rolls. 2 You have vulnerability to all damage, including damage from the activating attack, until the start of your next turn. 3 You gain resistance to magical damage, and vulnerability to bludgeoning, piercing, and slashing damage for the next minute. 4 For the next minute, you regain 5 hit points at the start of each of your turns. 5 If you die from this attack, you immediately come back to life as if by the reincarnate spell. 6 For the next minute, you can teleport up to 20 feet to a point you can see as a bonus action on each of your turns. 7 Creatures have advantage on attack rolls against you for the next minute. 8 You gain a +3 bonus to AC while wearing this armor. 9 You have a –2 penalty to AC while wearing this armor. 10 You gain a +1 bonus to AC while wearing this armor. 11 You have a –1 penalty to AC while wearing this armor. 12 You gain a +2 bonus to AC while wearing this armor. 13 You have a –3 penalty to AC while wearing this armor. 14 Creatures have disadvantage on attack rolls against you for the next minute. 15 The armor casts mirror image on you. 16 The armor sprouts wings and casts fly on you, requiring no concentration. When the spell ends, the wings disappear. 17 You gain resistance to bludgeoning, piercing, and slashing damage, and vulnerability to magical damage for the next minute. 18 You gain immunity to all damage, including damage from the activating attack, until the end of your next turn. 19 A spectral aura coats you for the next minute, granting you a +1 bonus to AC and immunity to magic missile. 20 Roll twice on this table, gaining both effects.