Collision of Realms is a rare Sorcery card from Neon Dynasty Commander (NEC), collector number 58. Current market price: $0.30, TCGplayer market prices via Scryfall.
Each player shuffles all creatures they own into their library. Each player who shuffled a nontoken creature into their library this way reveals cards from the top of their library until they reveal a creature card, then puts that card onto the battlefield and the rest on the bottom of their library in a random order.