Chrome Courier is a common Artifact Creature — Thopter card from The Brothers' War Commander (BRC), collector number 123. Current market price: $0.23, TCGplayer market prices via Scryfall.
Flying When this creature enters, reveal the top two cards of your library. Put one of them into your hand and the other into your graveyard. If you put an artifact card into your hand this way, you gain 3 life.