Losheel, Clockwork Scholar is a rare Legendary Creature — Elephant Artificer card from The Brothers' War Commander (BRC), collector number 73. Current market price: $2.49, TCGplayer market prices via Scryfall.
Prevent all combat damage that would be dealt to attacking artifact creatures you control. Whenever one or more artifact creatures you control enter, draw a card. This ability triggers only once each turn.