Rift Sower is a common Creature — Elf Druid card from Modern Horizons 2 (MH2), collector number 170. Current market price: $0.18 (foil $0.29), TCGplayer market prices via Scryfall.
{T}: Add one mana of any color. Suspend 2—{G} (Rather than cast this card from your hand, you may pay {G} and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)