This card was printed in the following sets:

Card Name: Symbol Set Block
Ancient Silverback Seventh Edition (Rare) Seventh Edition Core Sets
Ancient Silverback Ninth Edition (Rare) Ninth Edition Core Sets
Ancient Silverback Urza's Destiny (Rare) Urza's Destiny Urza's Block
Ancient Silverback Magic 2015 Core Set (Uncommon) Magic 2015 Core Set Core Sets

This card has restrictions in the following formats:

Format Legality
Pioneer Legal
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!