Cosmic Hunger

The bite-fight repackaged as removal. Green has always been able to point a creature's power at another creature through the "fight" template, but fight makes both bodies swing: your attacker takes damage back, and a big enough blocker can trade up or kill your fighter outright. This trims that liability by making the damage one-directional. Your creature deals its power to the target and takes nothing in return, which turns a green combat trick into something closer to a targeted removal spell that scales with the board you already built. The two-mana instant cost is what keeps it grounded: the effect is only as good as the power on the creature you have in play, so it rewards a board with a genuine threat on it and does nothing off an empty battlefield. The wider-than-usual target set matters too. Where most fight-style effects can only point at creatures, this reaches planeswalkers and battles as well, giving green a rare instant-speed way to burn down a loyalty count or crack a battle without committing an attack. It is a small but pointed correction to a color-pie tension green has carried for years: green gets to remove things by out-sizing them, but historically had to accept the recoil. Here the recoil is gone, and the trade-off moves entirely into the requirement that you bring the power yourself.