Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds

Legendary Resistance (5/day). When Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds fails a saving throw, he can choose to succeed instead.

Magic Chad. All damage that Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds deals damage, it is counted as magical for the purposes of overcoming resistance and immunities.

Shapechanger. Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds can use its action to polymorph into an object or back into its true, amorphous form. Its statistics are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.

Adhesive (Object Form Only). Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds adheres to anything that touches it. A Gargantuan or smaller creature adhered to the mimic is also grappled by it (escape DC 29). Ability checks made to escape this grapple have disadvantage.

False Appearance (Object Form Only). While Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds remains motionless, it is indistinguishable from an ordinary object.

Grappler. Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds has advantage on attack rolls against any creature grappled by it.

Magic Resistance. Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds has advantage on saving throws against spells and other magic.

Multiattack. Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds can make four Deck attacks, and then makes one Bite attack.

Deck. Melee Weapon Attack: +21 to hit, reach 20 ft, one target. Hit: 52 (4d20+10) bludgeoning damage.

Bite. Melee Weapon Attack: +21 to hit, reach 10 ft., one target. Hit: 32 (4d10 + 10) piercing damage plus 45 (10d8) acid damage.

Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds can take 5 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds regains spent legendary actions at the start of its turn.

Deck. Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds makes a single Deck attack at one creature within range.

Leg Day. Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds can move up to his movement speed.

Stompwave (2 Actions). Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds stomps the ground with such force that all creatures within 120 feet of him must make a DC 29 Strength Saving Throw, taking 22 (5d8) bluedgeoning damage on a fail, is knocked back 30 ft, and is knocked prone. On a success, a creature takes half damage, is knocked back 15 ft, and is not knocked prone.

Beyblade (5 Actions). Chad, the Defiler, the Usurper, the Ultimate Unit, the Destroyer of Worlds spins extremely quickly until the end of his next turn. While spinning, all creatures within 20 ft of him must make a DC 29 Dexterity Saving Throw or take 42 (4d20) bludgeoning damage. This applies to all creatures that pass through the area on their turn, and all creatures forced through this area.