Chakram Retriever is a uncommon Creature — Elemental Dog card from Battlebond (BBD), collector number 15. Current market price: $5.49 (foil $13.36), TCGplayer market prices via Scryfall.
Partner with Chakram Slinger (When this creature enters, target player may put Chakram Slinger into their hand from their library, then shuffle.) Whenever you cast a spell during your turn, untap target creature.