Racers' Scoreboard is a uncommon Artifact card from Aetherdrift (DFT), collector number 239. Current market price: $0.26 (foil $0.35), TCGplayer market prices via Scryfall.
Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.) When this artifact enters, draw two cards, then discard a card. Max speed — Spells you cast cost {1} less to cast.