Cheapest priced copy (Tarkir: Dragonstorm): $0.35 at Card Kingdom, near mint, their price list as of .
Sibsig Appraiser 
Creature — Zombie Advisor · 2/1 · Common · Tarkir: Dragonstorm · #56
When this creature enters, look at the top two cards of your library. Put one of them into your hand and the other into your graveyard.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tarkir: Dragonstorm | 56 | Common | $0.35 | $0.49 |