Disarm

You attempt to interfere with your target’s control over a weapon or other item they are holding, ideally ripping it out of their grasp. Choose a creature within your melee Reach and an item they are holding or wielding as your targets.

Make a Melee Weapon Attack against your target’s Reflex DC.

If you are Unarmed or wielding a Cestus, you can use an Athletics Attack instead of a Weapon Attack.

You take a -4 Penalty to your attack roll for every size category your target’s size exceeds yours, and gain a +4 Bonus to your attack roll for every size category your size exceeds your target’s.