Irons of the Onyx Crucible

2 pieces: (2) Set: Deep Wounds increases your chance to critically strike and critical strike damage dealt to afflicted targets by 8%.

4 pieces: (4) Set: Deep Wounds critical strikes have a chance to increase the damage of your next Mortal Strike by 10% and cause it to deal 13 Physical damage to enemies in front of you, stacking up to 3 times. Damage reduced above 5 targets.