Treacherous Werewolf is a common Creature — Werewolf Minion card from The List (PLST), collector number JUD-76. Current market price: $0.28, TCGplayer market prices via Scryfall.
Threshold — As long as there are seven or more cards in your graveyard, this creature gets +2/+2 and has "When this creature dies, you lose 4 life."