This card was printed in the following sets:

Card Name: Symbol Set Block
Sheoldred, Whispering One New Phyrexia (Mythic Rare) New Phyrexia Scars of Mirrodin
Sheoldred, Whispering One Iconic Masters (Mythic Rare) Iconic Masters General
Sheoldred, Whispering One Jumpstart (Mythic Rare) Jumpstart
Sheoldred, Whispering One Historic Anthology 5 (Mythic Rare) Historic Anthology 5

This card has restrictions in the following formats:

Format Legality
Modern Legal
Legacy Legal
Vintage Legal
Commander Legal
Historic Legal
Explorer Banned
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!