Spider-UK

The end-step trigger wants two creatures to have entered under your control in a single turn, and the discounted casting cost is the loop that feeds it: bounce a tapped body you own, replay it, and one of the two entries you need is already booked. What reads like a tempo tax on the discount doubles as engine fuel, because the creature you returned to hand is the same creature you re-cast to satisfy the payoff. The math rewards a wide board of cheap recursion targets, or token makers that inflate the count without spending cards. Returning a tapped attacker carries a quieter benefit too: it re-triggers an enters-the-battlefield ability at the cost of a body you meant to redeploy anyway. This is a main-phase, sorcery-speed operation, so the bounce is a proactive rebuild rather than a reactive save; you are unwinding your own board on your turn, not answering removal on the opponent's. The 3/4 frame is built to weather a crowded board, not to command it, fitting a card that would rather grind incremental draws and life than close on its own. Go-wide white has a long history of payoffs for creatures arriving in bunches, but most of them ask only that bodies exist. This one folds the recycling and the reward into a single repeatable motion, so the requirement to keep recurring creatures is not a separate demand but the same action that discounts the spell.