When you score a critical hit with a melee weapon attack, you can roll one of the weapon’s damage dice one additional time and add it to the extra damage of the critical hit.

You have stone fists that you can use to make unarmed strikes. On a hit your fists deal bludgeoning damage equal to 1d6 + your Strength Modifier.

When you aren’t wearing armour, your base AC is 13 + your Constitution modifier.

When you are reduced to 0 hit points but not killed outright, you can drop to 1 hit point instead. You can’t use this feature again until you finish a long rest.