Upon speaking the words "vanish into dark, future now and past." a 5 by 5 foot cube of non-living, non-magical matter that you touch disapears, falling into a pocket dimension-like area where it remains until you dispel the spell and release the cube of matter within 5 feet in front of you. should a creature be within that space or under it, and the matter falls on it, that creature will take 5d4 bludgeoning damage.