Valakut Exploration

Impulse-draw in red has always carried a cruel clause: whatever you don't cast this turn vanishes, and you gained nothing for the greed. This rewrites that contract. Every land drop exiles a card you can play, but only until your end step arrives; whatever you haven't played by then is swept into the graveyard, and the enchantment burns each opponent for the count. So the exile pool isn't a stash you draw down at your leisure, it's a window that closes at your end step, and the mandatory end-step trigger is what turns leftovers into reach instead of waste. That reframes the whole engine. A deck flopping fetches and extra land drops floods the pool fast, then races to spend it before the clock catches up; a deck that can't empty the pile converts the overflow to damage automatically. Either reading is fine, because both do work: cards you play advance your board and hand, cards you don't advance the burn. It sits alongside the red tradition of top-of-library velocity that pushes you to spend fast, Light Up the Stage and the older expire-at-end-of-turn impulse effects, but those punish you for holding while this one doesn't. The leftovers aren't a penalty here, they're ammunition, and the design's real interest is that the same pile of exiled cards is measured two ways at once: as resources you might still cast, and as damage you're already assured of dealing.