Yavimaya Ants

A 5/1 for four with haste and trample is the kind of body that wins a race on the turn it arrives and dies to a stiff breeze the turn after, which is precisely the deal cumulative upkeep was built to formalize. The card is loaned to you, not given: the first turn costs nothing extra, the next demands on top of your other plays, the one after , and the curve bends until the tax outruns even a dedicated green manabase. That escalating rent is the entire design. Without it, a hasty five-power trampler at four mana would be a generically efficient threat; with it, the card is honest about being a burst of damage you sacrifice yourself, an attacker that asks to be cashed in for combat math before the second upkeep ever resolves. The Alliances cumulative-upkeep cycle leaned on this tension repeatedly, pricing oversized effects against a clock the controller pays rather than the opponent, and Yavimaya Ants is the aggressive expression of it: maximum frontloaded pressure, minimum shelf life. The 5/1 split matters here too. The toughness is low enough that the card rarely survives to face a second upkeep anyway, which means the cumulative cost is less a long-term drain than a reminder that the body was never meant to stick around past the swing it was printed to deliver.