Chitin Gravestalker is a common Creature — Insect Warrior card from Aetherdrift (DFT), collector number 79. Current market price: $0.17 (foil $0.32), TCGplayer market prices via Scryfall.
This spell costs {1} less to cast for each artifact and/or creature card in your graveyard. Cycling {2} ({2}, Discard this card: Draw a card.)