7.5-15% Weak Spot Damage. Weakspot Kills also ignore Enemy Hit Mass.
3.5-5% Strength for 3.5s on Hit. Stacks 5 times.
5-6.5% Strength for 5s on Close Range Kill.
Immune to Ranged Attacks for 0.7-1s on Close Range Kill.
This is dumb. Try if you want to feel like you're hitting mobs with an anvil.