Moonrager's Slash

Fire it under a full sun and it is a fair burn spell that trades one-for-one for three mana; fire it after the moon has turned and one red mana points three damage at any target at instant speed, a rate that has historically demanded a rider or a restriction everywhere else. The discount is the interesting part precisely because you do not set it up yourself: where spectacle asks you to have dealt damage this turn and a death-trigger clause asks you to have killed something, this ties its payoff to a board state the game tracks on your behalf. That is also the catch. Night arrives on the mechanic's terms, flipping with the number of spells cast across the table, so the coupon is real but never guaranteed to be there when you want it, and a deck that wants the cheap version has to modulate its own tempo to keep the sky dark. When it lands, the flexibility of "any target" lets that one-mana version reach past creatures to close a game from nowhere; when it misses, you are paying full retail for a spell whose entire appeal was the markdown. That gap between ceiling and floor is what turns the card into a sequencing puzzle rather than an automatic slot: the reward for owning the night is steep enough to bend how a red deck plans its early turns around holding it.