Possessed Nomad is a rare Creature — Human Nomad Horror card from Torment (TOR), collector number 13. Current market price: $0.28 (foil $7.23), TCGplayer market prices via Scryfall.
Vigilance Threshold — As long as there are seven or more cards in your graveyard, this creature gets +1/+1, is black, and has "{2}{B}, {T}: Destroy target white creature."