March of the Multitudes is a mythic Instant card from New Capenna Commander (NCC), collector number 346. Current market price: $1.79, TCGplayer market prices via Scryfall.
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.) Create X 1/1 white Soldier creature tokens with lifelink.