Silverwing Squadron

The engine here runs backward from most anthem payoffs: instead of pumping a wide board, the board is what defines the body. Power and toughness track your creature count, so the Squadron is only as big as the army standing behind it, and it counts itself toward that total. That creates a self-priming loop, because the attack trigger fires on declaration, not on damage: swinging makes 2/2 Knights (scaled to your opponent count) as attackers are declared, and because the static ability recalculates the moment those tokens hit the battlefield, the Squadron is already bigger before blockers are chosen and damage is dealt in that same combat. In multiplayer, one attack leaves you with a fistful of vigilant bodies, all of which grow the flier that made them, this turn and every turn after. Vigilance on both the Squadron and its tokens closes the loop: nothing has to stay home to hold the line, so the whole army swings and defends at once. The balancing weight is that the body is entirely borrowed and the whole structure is brittle against a single sweeper. A board wipe takes the Squadron along with everything it spawned, and because its stats read off a battlefield that no longer exists, there is nothing left to rebuild around. It rewards a battlefield you have already committed to and punishes overextension into a sweeper, the honest tension in any go-wide creature that scales off the count it also feeds.