Sharpened Claws is a Kavat-exclusive mod that allows the Kavat to target an enemy and rip it apart as it is stunned in a free fall animation. Each swipe deals high damage and removes some of the target's Armor.
When combined with Swipe only a single enemy will take bonus damage and lose its armor. Other enemies beyond the first will take damage as though from a normal attack, and will not take the extra damage, nor lose armor.
Armor Reduction stacks additively with Corrosive Projection but only applies 1 time per target. Therefore, with 1 max rank Corrosive Projection active, a Kavat with a rank 2 Sharpened Claws will already remove enemy armor entirely. With a rank 1 Sharpened Claws 22% enemy armor will remain.