This card was printed in the following sets:

Card Name: Symbol Set Block
Hydra Omnivore Magic: The Gathering-Commander (Rare) Magic: The Gathering-Commander Miscellaneous
Hydra Omnivore Magic: The Gathering—Conspiracy (Mythic Rare) Magic: The Gathering—Conspiracy Miscellaneous
Hydra Omnivore Commander 2018 (Mythic Rare) Commander 2018 Miscellaneous

This card has restrictions in the following formats:

Format Legality
Legacy Legal
Vintage Legal
Commander Legal
x For more information regarding each format and play style modifications, visit the Banned / Restricted Lists for DCI-Sanctioned Tournaments page on the Magic: The Gathering website.

Gatherer works better in the Companion app!