Cheapest priced copy (Core Set 2021): $0.35 at Card Kingdom, near mint, their price list as of .
Lofty Denial 
Instant · Common · Core Set 2021 · #56
Counter target spell unless its controller pays {1}. If you control a creature with flying, counter that spell unless its controller pays {4} instead.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Core Set 2021 | 56 | Common | $0.35 | $1.49 |
One ruling from Wizards of the Coast
- 23 June 2020If you control more than one creature with flying, Lofty Denial still requires only {4}.