Ruinous Path is a rare Sorcery card from Battle for Zendikar Promos (PBFZ), collector number 123s. Current market price: — (foil $0.27), TCGplayer market prices via Scryfall.
Destroy target creature or planeswalker. Awaken 4—{5}{B}{B} (If you cast this spell for {5}{B}{B}, 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.)