Shadowheart, Dark Justiciar is a rare Legendary Creature — Human Elf Cleric card from Battle for Baldur's Gate Promos (PCLB), collector number 146s. Current market price: — (foil $15.11), TCGplayer market prices via Scryfall.
{1}{B}, {T}, Sacrifice another creature: Draw X cards, where X is that creature's power. Choose a Background (You can have a Background as a second commander.)