World-Breaking Footfall

Requirements You are in Kaiju Stance and are touching the ground.

You slam the ground and unleash a fearsome roar, sending broken shards of earth flying in all directions. The ground in a 20-foot emanation around you becomes difficult terrain, or greater difficult terrain if it was already difficult terrain. All other creatures within the emanation take 7d6 bludgeoning damage with a reflex save against your class DC. You then can't use World-breaking Footfall for .