Retreat to Valakut is a uncommon Enchantment card from Battle for Zendikar (BFZ), collector number 153. Current market price: $0.15 (foil $0.74), TCGplayer market prices via Scryfall.
Landfall — Whenever a land you control enters, choose one — • Target creature gets +2/+0 until end of turn. • Target creature can't block this turn.