Dialga's Roar of Time

Unleashes a roar that tears open the space-time continuum, shattering the fabric of time around you. Target creature in range must make an INT saving throw. On a failed save, the creature takes 75d4 'true' damage ('True' damage has no damage type, and cannot be changed in any way), or half as much on a successful save. After a brief moment, reality returns to normal. After using this spell, the user is inflicted with 'Recoil' until the end of their next turn. Creatures with 'Recoil' cannot use their action.