Earthen Arms is a common Sorcery card from The List (PLST), collector number BFZ-172. Current market price: $0.31, TCGplayer market prices via Scryfall.
Put two +1/+1 counters on target permanent. Awaken 4—{6}{G} (If you cast this spell for {6}{G}, also put four +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.)