Cheapest priced copy (The List): $4.49 at Card Kingdom, near mint, their price list as of .
Batwing Brume 
Instant · Uncommon · The List · #EVE-81
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.)
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
5 printings · $4.49 to $44.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Archenemy | 80 | Uncommon | $6.49 | — |
| Eventide | 81 | Uncommon | $5.99 | $44.99 |
| The List | ARC-80 | Uncommon | — | — |
| The List | EVE-81 | Uncommon | $4.49 | — |
| Secret Lair Drop | 2469 | Rare | $15.99 | $27.99 |
3 rulings from Wizards of the Coast
- 1 August 2008The spell cares about what mana was spent to pay its total cost, not just what mana was spent to pay the hybrid part of its cost.
- 1 August 2008The spell checks on resolution to see if any mana of the stated colors was spent to pay its cost. If so, it doesn’t matter how much mana of that color was spent.
- 1 August 2008If the spell is copied, the copy will never have had mana of the stated color paid for it, no matter what colors were spent on the original spell.