Your Strength, Constitution, and Intelligence each increase by 2. Your Dexterity, Wisdom, and Charisma each increase by 1.

You have resistance to bludgeoning, piercing, and slashing damage from non-magical attacks.

You cannot be critically hit. Any critical hit against you becomes a normal hit instead.

You gain the Tavern Brawler or Durable feat (your choice).

Your body is as strong as the material you are forged from. Your AC cannot be lower than 17, regardless of what armor you are wearing. Additionally, you count as one size larger for the purposes of carrying capacity and determining what creatures you can grapple.

When you take the Attack action, you may make one additional melee attack as part of that action. You can use this feature once per long rest.

Once per long rest, as a bonus action, you can enter an empowered state for 1 minute. While in this state, your movement speed increases by 10 feet, your melee attacks ignore resistance to non-magical attacks, and you gain temporary hit points equal to your level.

Your body is nearly impervious to destruction. Whenever you fail a Strength, Constitution, or Intelligence saving throw, you can choose to reroll it. You must use the new roll. You can use this feature a number of times equal to your proficiency bonus per long rest.

Your immense weight and solid form make you incredibly difficult to move. You have advantage on ability checks and saving throws against effects that would forcibly move you or knock you prone.

Your body resonates with metal. You have proficiency in either Smith’s Tools and Mason’s Tools, and you can use your adamantine form as a natural weapon. Your unarmed strikes deal 1d6 bludgeoning damage and count as magical for the purpose of overcoming resistances and immunities.