Cheapest priced copy (Oath of the Gatewatch): $0.35 at Card Kingdom, near mint, their price list as of .
Flayer Drone 
Creature — Eldrazi Drone · 3/1 · Uncommon · Oath of the Gatewatch · #148
Devoid (This card has no color.)
First strike
Whenever another colorless creature you control enters, target opponent loses 1 life.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Oath of the Gatewatch | 148 | Uncommon | $0.35 | $0.49 |