Battlefield Scrounger is a common Creature — Centaur card from Dominaria Remastered (DMR), collector number 150. Current market price: $0.04 (foil $0.10), TCGplayer market prices via Scryfall.
Threshold — Put three cards from your graveyard on the bottom of your library: This creature gets +3/+3 until end of turn. Activate only once each turn and only if there are seven or more cards in your graveyard.