This card was printed in the following sets:

Card Name: Symbol Set Block
Sphinx Summoner Conflux (Rare) Conflux Shards of Alara Block
Sphinx Summoner Commander 2016 (Rare) Commander 2016 General
Sphinx Summoner Double Masters (Uncommon) Double Masters

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.

Gatherer works better in the Companion app!