Mighty (Level 16)

A mighty weapon is heavy, hardened, and optimized for raw power. It grants bonuses to damage and armor penetration.

Primary Effect: +4 hit power, +4 armor penetration

Secondary Effect: Your attacks cause a stacking -4 penalty to the target's Armor rating (resets on short rest). All of your attacks cause unbalanced on a hit (Con ends). When you reduce a target's armor to 0 (or score a hit on anyone who already had 0), they become vulnerable to all physical damage.