Nimble Mongoose is a uncommon Creature — Mongoose card from Odyssey (ODY), collector number 258. Current market price: $0.73 (foil $44.20), TCGplayer market prices via Scryfall.
Shroud (This creature can't be the target of spells or abilities.) Threshold — This creature gets +2/+2 as long as there are seven or more cards in your graveyard.