Cheapest priced copy (Duel Decks: Jace vs. Vraska): $0.35 at Card Kingdom, near mint, their price list as of .
Summoner's Bane 
Instant · Uncommon · Duel Decks: Jace vs. Vraska · #31
Counter target creature spell. Create a 2/2 blue Illusion creature token.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duel Decks: Jace vs. Vraska | 31 | Uncommon | $0.35 | — |
| Zendikar | 71 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 1 October 2009You get the token creature, not the controller of the creature spell.
- 1 October 2009If the targeted spell is an illegal target by the time Summoner’s Bane resolves, the entire spell doesn’t resolve. You won’t get a creature token.