Groundshaker (Su)

3rd-Tier Champion Path Ability

As a standard action, you can expend one use of mythic power to stomp or punch the ground with mighty force, forcing creatures within 5 feet per tier to attempt a Reflex save (DC = 10 + your tier + your Strength modifier).

Non-mythic creatures that fail their saves fall prone and are staggered for 1 round. Non-mythic creatures that succeed at their saves and mythic creatures that fail are staggered for 1 round. Mythic creatures that succeed at their saves are unaffected. You are not affected by this ability, and you may designate a number of creatures up to your tier to also not be affected.