Winota, Joiner of Forces
The trigger runs off the wrong creature type. Every other Human payoff card wants you to fill a board with Humans and swing; this one only fires when a non-Human attacks, which quietly forces a deck to run two creature populations that pull in opposite directions. You need cheap, expendable non-Humans (tokens are the obvious engine) to swing and pull the trigger, and a top-end of expensive Human bombs worth cheating past their mana cost. The creature that swings first is not the creature that wins; it is the ticket that pays for the one that does. Each non-Human attacker digs six deep and drops a Human onto the battlefield tapped and attacking, indestructible until end of turn, so those payoffs arrive already committed to combat before an opponent gets a real window to interact with them. Because the ability keys on the attack step rather than on cast or on combat damage, a single go-wide turn chains multiple triggers into multiple free Humans, snowballing a board into lethal in a step that skips both summoning sickness and the mana those Humans would normally owe. That explosiveness is why the card drew bans in constructed play not long after it appeared: a four-mana 4/4 that converts a token swarm into a pile of free indestructible finishers ends games from board states that looked survivable a turn earlier.
