Cheapest priced copy (Tenth Edition): $4.99 at Card Kingdom, near mint, their price list as of .
Head Games 
Sorcery · Rare · Onslaught · #155
Target opponent puts the cards from their hand on top of their library. Search that player's library for that many cards. The player puts those cards into their hand, then shuffles.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $4.99 to $24.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tenth Edition | 148 | Rare | $4.99 | $19.99 |
| Onslaught | 155 | Rare | $4.99 | $24.99 |