Only if it's living/undead and capable of movement
Green also wins a reasonable number of games by simply attacking people
This vintage collection includes Raise Dead, Firebreathing, Holy Stregnth, Mesa Pegasus, Swamp, Plague Rats, Island, Terror, Merfolk Of The Pearl Trident, Paralyze, Mountain, Holy Armor, Phantasmal Terrain, and Pestilence
Banner of Kinship Banner of Kinship can provide Coat of Arms levels of board pump, sometimes enough to end the game on the spot, but it also has the failcase of being a complete blank if you have no creatures in play already
It does have formidable, but you have to attack with eight power worth of stuff to fight a single opposing creature