Pianna, Nomad Captain

An anthem that only fires when its owner swings. Most team-pump effects in white sit on enchantments or static abilities that buff the whole board every turn, paying for the power with a flat mana investment up front. Pianna instead ties the bonus to the attack trigger, which means the buff is conditional in two directions: it costs nothing extra to use, but it does nothing on the turns you hold back. The reward for that conditionality is that the pump scales with the swarm; a wide attack turns a single trigger into a board-wide +1/+1, reaching every creature already declared as an attacker at the moment the trigger resolves. There is a structural wrinkle that makes the design more forgiving than it looks: the trigger resolves in the Declare Attackers step and creates a continuous effect, so once that +1/+1 lands, it stays through the rest of the turn even if Pianna is chumped, blocked, or killed before combat damage. The captain has to be in the red zone to give the order, but the order survives the captain. That puts Pianna in the lineage of fragile aggressive lords whose ability is strong precisely because you risk the body that grants it; the difference is that the risk is paid for in advance, with a trigger that survives the source even if the opponent kills Pianna in response.