Cheapest priced copy (Tarkir: Dragonstorm): $0.35 at Card Kingdom, near mint, their price list as of .
Sonic Shrieker 
Creature — Dragon · 4/4 · Uncommon · Tarkir: Dragonstorm · #318
Flying
When this creature enters, it deals 2 damage to any target and you gain 2 life. If a player is dealt damage this way, they discard a card.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tarkir: Dragonstorm | 226 | Uncommon | $0.35 | $0.49 |
| Tarkir: Dragonstorm | 318 | Uncommon | $0.35 | $0.49 |