Action Surge (1/short rest). This turn, Adam takes one extra action on top of his normal action and possible bonus action.

Aversion of Fire. If Adam takes fire damage, he has disadvantage on attack rolls and ability checks until the end of his next turn.

Brutal Crushing. When Adam scores a critical hit using his Slam attack against a creature, attack rolls against that creature are made with advantage until the start of his next turn.

Fists of Terrible Might. Adam's weapon attacks count as magical for the purposes of overcoming resistances and immunities.

Immutable Form. Adam is immune to any spell or effect that would alter his form.

Improved Critical. Adam scores a critical hit when he rolls a natural 19 or 20 on his attack rolls.

Legendary Resistance (2/day). When Adam fails a saving throw, he may expend a Legendary Resistance to succeed instead.

Lightning Absorption. Whenever Adam is subjected to lightning damage, he takes no damage and instead regains a number of hit points equal to the lightning damage dealt.

Magic Resistance. Adam has advantage on saving throws against spells and other magical effects.

Multiattack. Adam makes two slam attacks.

Slam. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 5) bludgeoning damage.

Rage (3/day). Adam enters a rage for 1 minute, gaining advantage on STR checks and saving throws (not attacks), +2 melee damage with attacks which use STR, and resistance to all bludgeoning, piercing, and slashing damage for the duration.

Adam can take 2 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. Adam regains spent legendary actions at the start of his turn.

Bull Rush.  (Costs 2 Actions) Adam moves up to his speed and makes a single Slam attack. That slam attack deals double damage to objects and structures.

Charge. Adam moves up to his speed.

Slam. Adam makes a single Slam attack.