Hard Head has these relationships to other tropes:

parents kids shares a parent with:
Made Of Iron
Natural Weapon
parent child
Natural WeaponBare Fisted Monk
''Wolverine Claws
''Tail Slap
''Breath Weapon
''Beware My Stinger Tail
''Combat Tentacles
''Goomba Stomp
''Ass Kicks You
''Horn Attack
''Absurdly Sharp Claws
''Power Pincers
You'll need to Get Known if you want to add or modify these relationships.