Batwing Brume is a rare Instant card from Secret Lair Drop (SLD), collector number 2469. Current market price: $17.41 (foil $36.11), TCGplayer market prices via Scryfall.
Prevent all combat damage that would be dealt this turn if {W} was spent to cast this spell. Each player loses 1 life for each attacking creature they control if {B} was spent to cast this spell. (Do both if {W}{B} was spent.)