Surrak, the Hunt Caller

Formidable is the keyword that turns a green board into an attack trigger, and this is the card that uses it most pointedly: not for a one-time payoff, but as a recurring haste engine at the start of every combat. The condition is a board-state check rather than a mana cost, and the body itself contributes 5 of the 8 power you need, so a single follow-up creature flips the switch. That changes how green closes games. The classic problem with a flood of fatties is the summoning-sickness tax: you commit a haymaker, then wait a turn while the opponent finds an answer. Granting haste at the beginning of combat collapses that window, letting the freshly cast threat swing the same turn it lands, which is exactly when green's tempo lead is most fragile. It also rewards going wide-and-tall rather than just wide, since the power threshold is met faster by a few large bodies than a crowd of small ones. The choice of target each turn is the quiet flexibility: usually the newest arrival, occasionally a recurring or blink-prone creature you want attacking off-curve. As a commander or curve-topper, the appeal is the same loop every turn the threshold holds: cast, connect, repeat. It is a haste-enabler dressed as a beater, and the 5/4 frame means it is pulling its weight on the math even before the trigger resolves.