Galadhrim Ambush

Green Fog is a well-worn card type: Fog, Tangle, Constant Mists, all buying a turn by erasing the damage step. This one narrows the prevention to non-Elf creatures and then pays out for surviving it. Held for an opponent's swing, every attacker in that combat mints a 1/1 Elf Warrior for you, so the same declaration that threatened your life total becomes raw material for rebuilding your board. The token count scales with the crowd swings green invites: the wider the attack you answer, the larger the army you assemble, which quietly punishes anyone who commits everything to a lethal-looking turn. The Elf clause is the wrinkle worth reading twice, and it cuts both ways. On defense it leaves a hole: an opponent attacking with Elves deals their damage in full, so this is no blanket shield against a tribal mirror. On offense it flips into a weapon. Cast this in your own combat and the prevention skips your Elves entirely, so your attackers connect while any non-Elf creature deals nothing back. That turns a defensive instant into an offensive one inside a board deep enough to field the very creatures the prevention excludes, a design that leans on tribal density to unlock its second mode. Both angles share a shape: the spell costs the aggressor tempo and repays it to you in bodies. It reads less as a stall than as a conversion, cashing whatever combat is happening into an Elf swarm you did not have a moment earlier.