This card was printed in the following sets:

Card Name: Symbol Set Block
Sea Serpent Limited Edition Alpha (Common) Limited Edition Alpha Core Sets
Sea Serpent Limited Edition Beta (Common) Limited Edition Beta Core Sets
Sea Serpent Unlimited Edition (Common) Unlimited Edition Core Sets
Sea Serpent Revised Edition (Common) Revised Edition Core Sets
Sea Serpent Fourth Edition (Common) Fourth Edition Core Sets
Sea Serpent Fifth Edition (Common) Fifth Edition Core Sets
Sea Serpent Masters Edition IV (Common) Masters Edition IV 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.