Disarming Attack

From Kronopolis and the Flat Plane

"You try to knock a weapon or another item from a creature's grasp." -Description

Tier 1 Contested Strength or Dexterity (Sleight of Hand) check. Choose an object a target is holding within range. If you succeed, the target drops the item.
Tier 2 You make an attack action in addition to the maneuver.
Tier 3 The item falls to a location within 10 ft of your choice. +5 ft. for light items and -5 ft for heavy items.