Cheapest priced copy (Alara Reborn): $0.35 at Card Kingdom, near mint, their price list as of .
Slave of Bolas 
Sorcery · Uncommon · Archenemy: Nicol Bolas · #86
Gain control of target creature. Untap that creature. It gains haste until end of turn. Sacrifice it at the beginning of the next end step.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
5 printings · $0.35 to $4.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Alara Reborn | 136 | Uncommon | $0.35 | $4.99 |
| DCI Promos | 27 | Rare | — | $0.79 |
| Duel Decks: Ajani vs. Nicol Bolas | 67 | Uncommon | $0.39 | — |
| Archenemy: Nicol Bolas | 86 | Uncommon | $0.39 | — |
| The List | E01-86 | Uncommon | $0.35 | — |
2 rulings from Wizards of the Coast
- 1 May 2009If you don’t control the targeted creature when the “at end of turn” ability resolves, it won’t be sacrificed. If it’s still on the battlefield but under another player’s control, the ability won’t try to have you sacrifice it again at the end of the turn after that.
- 1 May 2009You may target a creature you already control.