Cheapest priced copy (Planeshift): $0.35 at Card Kingdom, near mint, their price list as of .
Gainsay 
Instant · Uncommon · World Championship Decks 2002 · #cr26sb
Counter target blue spell.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.35 to $4.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Planeshift | 26 | Uncommon | $0.35 | $4.49 |
| Theros | 49 | Uncommon | $0.35 | $0.49 |
| World Championship Decks 2002 | cr26sb | Uncommon | $0.39 | — |
| World Championship Decks 2002 | shh26sb | Uncommon | $0.35 | — |