Battlefield Scrounger is a common Creature — Centaur card from Judgment (JUD), collector number 106. Current market price: $0.22 (foil $2.34), 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.