Cheapest priced copy (Masters 25): $0.35 at Card Kingdom, near mint, their price list as of .
Willbender 
Creature — Human Wizard · 1/2 · Uncommon · Duel Decks: Speed vs. Cunning · #47
Morph {1}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When this creature is turned face up, change the target of target spell or ability with a single target.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
10 printings · $0.35 to $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Masters 25 | 78 | Uncommon | $0.35 | $0.99 |
| Commander 2014 | 131 | Uncommon | $0.35 | — |
| Commander 2019 | 102 | Uncommon | $0.35 | — |
| Duel Decks: Jace vs. Chandra | 6 | Uncommon | $0.35 | — |
| Duel Decks: Speed vs. Cunning | 47 | Uncommon | $0.35 | — |
| Friday Night Magic 2004 | 1 | Rare | — | $2.79 |
| Duel Decks Anthology: Jace vs. Chandra | 6 | Uncommon | $0.35 | — |
| Legions | 58 | Uncommon | $0.39 | $3.49 |
| The List | DD2-6 | Uncommon | $0.35 | — |
| Time Spiral Timeshifted | 36 | Special | $0.35 | $3.99 |
5 rulings from Wizards of the Coast
- 4 October 2004The trigger occurs when you use the Morph ability to turn the card face up, or when an effect turns it face up. It will not trigger on being revealed or on leaving the battlefield.
- 15 April 2013If a spell with split second is on the stack, you can still respond by turning this creature face up and targeting that spell with the trigger. This is because split second only stops players from casting spells or activating abilities, while turning a creature face up is a special action.
- 16 March 2018You don't choose the new target for the spell until Willbender's triggered ability resolves. You must change the target if possible. However, you can't change the target to an illegal target. If there are no legal targets to choose from, the target isn't changed. It doesn't matter if the original target of that spell has somehow become illegal itself.
- 16 March 2018If a spell or ability targets multiple things, you can't target it with Willbender's triggered ability, even if all but one of those targets have become illegal.
- 16 March 2018If a spell or ability targets the same player or object multiple times, you can't target it with Willbender's ability.