Bane, Lord of Darkness is a rare Legendary Creature — God card from Battle for Baldur's Gate Promos (PCLB), collector number 267s. Current market price: — (foil $0.69), TCGplayer market prices via Scryfall.
As long as your life total is less than or equal to half your starting life total, Bane has indestructible. Whenever another nontoken creature you control dies, target opponent may have you draw a card. If they don't, you may put a creature card with equal or lesser toughness from your hand onto the battlefield.