Sprout Swarm [Future Sight] Vintage Legend has it that meteor

Legend has it that meteor craters are haunted by the ghosts of those who died on impact

Flip a coin

you may add {W}{U}{B}{R}{G}

except it has "At the beginning of your upkeep

The earth's real treasure is far deeper

Sprout Swarm [Future Sight] Vintage Legend has it that meteorSet: Future Sight Type: Instant Rarity: Common Cost: {1}{G} Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Create a 1 1 green Saproling creature token.