Cosmium Confluence is a rare Sorcery card from The Lost Caverns of Ixalan (LCI), collector number 181. Current market price: $0.24 (foil $0.22), TCGplayer market prices via Scryfall.
Choose three. You may choose the same mode more than once. • Search your library for a Cave card, put it onto the battlefield tapped, then shuffle. • Put three +1/+1 counters on a Cave you control. It becomes a 0/0 Elemental creature with haste. It's still a land. • Destroy target enchantment.