Cheapest priced copy (The List): $4.49 at Card Kingdom, near mint, their price list as of .
Wargate 
Sorcery · Rare · Alara Reborn · #129
Search your library for a permanent card with mana value X or less, put it onto the battlefield, then shuffle.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $4.49 to $94.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Alara Reborn | 129 | Rare | $4.99 | $94.99 |
| The List | ARB-129 | Rare | $4.49 | — |
2 rulings from Wizards of the Coast
- 1 May 2009A permanent card is an artifact, creature, enchantment, land, or planeswalker card.
- 1 May 2009You may always find a permanent card with mana value 0. (If X is 0, that's all you can find.) Cards with no mana cost (such as land cards), cards with mana cost {0}, and cards with mana cost {X} all have mana value 0.