Cheapest priced copy (Urza's Legacy): $0.59 at Card Kingdom, near mint, their price list as of .
Molten Hydra 
Creature — Hydra · 1/1 · Rare · Urza's Legacy · #85
{1}{R}{R}: Put a +1/+1 counter on this creature.
{T}, Remove all +1/+1 counters from this creature: It deals damage to any target equal to the number of +1/+1 counters removed this way.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.59 to $17.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Urza's Legacy | 85 | Rare | $0.59 | $17.99 |