Cheapest priced copy (Avacyn Restored): $0.35 at Card Kingdom, near mint, their price list as of .
Appetite for Brains 
Sorcery · Uncommon · Avacyn Restored · #84
Target opponent reveals their hand. You choose a card from it with mana value 4 or greater and exile that card.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Avacyn Restored | 84 | Uncommon | $0.35 | $0.49 |
| Duel Decks: Blessed vs. Cursed | 51 | Uncommon | $0.35 | — |
| Ultimate Masters | 83 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 7 December 2018If a card in a player’s hand has {X} in its mana cost, X is considered to be 0.