March of Burgeoning Life is a rare Instant card from Kamigawa: Neon Dynasty Promos (PNEO), collector number 201p. Current market price: $0.14 (foil $0.50), TCGplayer market prices via Scryfall.
As an additional cost to cast this spell, you may exile any number of green cards from your hand. This spell costs {2} less to cast for each card exiled this way. Choose target creature with mana value less than X. Search your library for a creature card with the same name as that creature, put it onto the battlefield tapped, then shuffle.