Cheapest priced copy (Double Masters): $0.79 at Card Kingdom, near mint, their price list as of .
Sphinx Summoner 
Artifact Creature — Sphinx · 3/3 · Uncommon · Double Masters · #220
Flying
When this creature enters, you may search your library for an artifact creature card, reveal it, put it into your hand, then shuffle.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.79 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters | 220 | Uncommon | $0.79 | $0.99 |
| Commander 2016 | 223 | Rare | $0.99 | — |
| Conflux | 127 | Rare | $0.99 | $2.99Out of stock |
One ruling from Wizards of the Coast
- 1 February 2009The card you find must be both an artifact and a creature.