Cheapest priced copy (Commander 2013): $0.49 at Card Kingdom, near mint, their price list as of .
Charnelhoard Wurm 
Creature — Wurm · 6/6 · Rare · Commander 2018 · #171
Trample
Whenever this creature deals damage to an opponent, you may return target card from your graveyard to your hand.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2013 | 180 | Rare | $0.49 | — |
| Commander 2018 | 171 | Rare | $0.49 | — |
| Conflux | 100 | Rare | $0.49 | $0.49 |
One ruling from Wizards of the Coast
- 1 February 2009If Charnelhoard Wurm is dealt lethal damage at the same time it deals damage to an opponent, Charnelhoard Wurm will be in your graveyard by the time you put its ability on the stack. In that case, you can target it with its own ability.