Cheapest priced copy (Duel Decks: Ajani vs. Nicol Bolas): $0.35 at Card Kingdom, near mint, their price list as of .
Ogre Savant 
Creature — Ogre Wizard · 3/2 · Common · Guildpact · #70
When this creature enters, if {U} was spent to cast it, return target creature to its owner's hand.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duel Decks: Ajani vs. Nicol Bolas | 55 | Common | $0.35 | — |
| Duel Decks: Izzet vs. Golgari | 9 | Common | $0.35 | — |
| Guildpact | 70 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 1 February 2006The ability is not optional.
- 1 February 2006If {U} was spent to cast Ogre Savant and no other creatures are on the battlefield, the Ogre will have to return itself.