The Serpent Society is a rare Legendary Creature — Human Snake Villain card from Marvel Super Heroes (MSH), collector number 226. Current market price: $0.45 (foil $0.85), TCGplayer market prices via Scryfall.
Deathtouch Ward—Get five poison counters. (A player with ten or more poison counters loses the game.) Whenever another creature you control with deathtouch dies, each opponent sacrifices a nontoken creature of their choice.