Cheapest priced copy (Magic 2014): $0.35 at Card Kingdom, near mint, their price list as of .
Voracious Wurm 
Creature — Wurm · 2/2 · Uncommon · Magic 2014 · #200
This creature enters with X +1/+1 counters on it, where X is the amount of life you've gained this turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic 2014 | 200 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 1 July 2013In a Two-Headed Giant game, life gained by your teammate isn’t considered, even though it causes your team’s life total to increase.
- 1 July 2013Voracious Wurm’s ability checks how much life you’ve gained during the turn, not what your life total is compared to what it was when the turn began. For example, if you start the turn at 10 life, gain 6 life during the turn, then lose 6 life later that turn, Voracious Wurm will enter the battlefield with six +1/+1 counters.