Cheapest priced copy (Commander 2018): $1.29 at Card Kingdom, near mint, their price list as of .
Hydra Omnivore 
Creature — Hydra · 8/8 · Rare · Commander 2011 · #161
Whenever this creature deals combat damage to an opponent, it deals that much damage to each other opponent.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $1.29 to $54.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2018 | 153 | Mythic | $1.29 | — |
| Commander 2011 | 161 | Rare | $1.29 | — |
| Conspiracy | 169 | Mythic | $1.49 | $54.99 |
| Duskmourn: House of Horror Commander | 185 | Mythic | $1.29 | — |
One ruling from Wizards of the Coast
- 22 September 2011The damage dealt by Hydra Omnivore as a result of its triggered ability is not combat damage (and doesn't cause the ability to trigger again).