Cheapest priced copy (Magic Origins): $0.49 at Card Kingdom, near mint, their price list as of .
Clash of Wills 
Instant · Uncommon · Magic Origins · #49
Counter target spell unless its controller pays {X}.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.49 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Friday Night Magic 2016 | 2 | Rare | — | $0.59 |
| Magic Origins | 49 | Uncommon | $0.49 | $0.99 |