Cheapest priced copy (Hour of Devastation): $0.35 at Card Kingdom, near mint, their price list as of .
Gideon's Defeat 
Instant · Uncommon · Hour of Devastation · #13
Exile target white creature that's attacking or blocking. If it was a Gideon planeswalker, you gain 5 life.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Hour of Devastation | 13 | Uncommon | $0.35 | $0.49 |