Power Slam is a Weapon skill, found in the One Hand and Shield Skill Line.
Base Skill: Power Bash
|Strike an enemy full-force with your shield, dealing 2399 Physical Damage. While slotted, blocking any attack grants you a stack of Resentment, which reduces the cost of your next Power Slam cast within 10 seconds by 50%. This ability's damage is considered Bash damage and interrupts the enemy if they are casting.|
Power Slam is a morph of the Power Bash base skill. The other morph is Reverberating Bash.