Natural Weapon Master

You've learned to be incredibly savage with your natural weapons and unarmed strikes, using them to inflict greater damage to your enemies. You gain the following benefits:

• If you aren't wielding any weapons or a shield when making an attack with a natural weapon or unarmed strike, your natural weapons and unarmed strikes count as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage.
• Before you make a melee attack with a natural weapon or unarmed strike, you can choose to take a -5 penalty to the attack roll. If the attack hits, you add +10 to the attack's damage.