Grizzly Bearsutility$11.49The classic 2/2 for two mana in green, serving the same baseline aggressive body as Runeclaw Bear.
Watchwolfutility$0.19A strictly larger two-mana vanilla creature in the same beatdown role, though it requires green-white instead of mono-green.
Marauding Blight-Priestutility$0.22Like Runeclaw Bear, it is a cheap 2-mana creature that can start applying early board presence, though its body is slightly more utility-focused.
Krosan Tuskerutility$0.11Not as efficient on board at the same point, but it fills the role of a green creature that can contribute to early game presence and smoothing.
Pelt Collectorutility$0.36A one-mana green creature that serves a similar aggressive early-game role and often grows into a much larger threat.
Experiment Oneutility$0.11Another efficient green one-drop that fills the same early creature/pressure role, with upside for scaling over time.
Boreal Druidramp$2.42While not a combat equivalent, it is a cheap green creature that plays a similar early-game role in green decks by accelerating development.
Elvish Mysticramp$4.05A staple green one-drop that supports the same early-game curve role, though it produces mana instead of attacking well.