This card was printed in the following sets:

Card Name: Symbol Set Block
Darksteel Forge Darksteel (Rare) Darksteel Mirrodin Block
Darksteel Forge Planechase (Rare) Planechase Miscellaneous
Darksteel Forge Magic 2014 Core Set (Mythic Rare) Magic 2014 Core Set Core Sets
Darksteel Forge Double Masters (Mythic Rare) 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!