Cataclysmic Detonation

Choose a charged object or creature within range. Energy detonates in a 40-ft. radius centered on it. Creatures of your choice in the area must make a DEX save, taking 55 (10d10) force, lightning, or thunder damage on a failed save, or half as much on a success.

This power has its own stable page so it can be linked from any character, item, location, story post, bargain, curse, or future reward.