This card was printed in the following sets:

Card Name: Symbol Set Block
Detention Sphere Return to Ravnica (Rare) Return to Ravnica Return to Ravnica
Detention Sphere Guild Kit: Azorius (Rare) Guild Kit: Azorius

This card has restrictions in the following formats:

Format Legality
Modern Legal
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.