Skemfar Shadowsage is a rare Creature — Elf Cleric card from Secret Lair Drop (SLD), collector number 759. Current market price: — (foil $0.94), TCGplayer market prices via Scryfall.
When this creature enters, choose one — • Each opponent loses X life, where X is the greatest number of creatures you control that have a creature type in common. • You gain X life, where X is the greatest number of creatures you control that have a creature type in common.