Rocco, Cabaretti Caterer is a uncommon Legendary Creature — Elf Druid card from Streets of New Capenna (SNC), collector number 332. Current market price: $0.20 (foil $0.29), TCGplayer market prices via Scryfall.
When Rocco enters, if you cast it, you may search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.