Cheapest priced copy (Shards of Alara): $0.35 at Card Kingdom, near mint, their price list as of .
Carrion Thrash 
Creature — Lizard Warrior · 4/4 · Common · Shards of Alara · #162
When this creature dies, you may pay {2}. If you do, return another target creature card from your graveyard to your hand.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Shards of Alara | 162 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 1 October 2008You choose a target when the ability triggers. You decide whether to pay {2} when the ability resolves.
- 1 October 2008If Carrion Thrash and another creature are put into a graveyard from the battlefield at the same time, you may target the other creature with Carrion Thrash’s ability.