This card was printed in the following sets:

Card Name: Symbol Set Block
Skullclamp Darksteel (Uncommon) Darksteel Mirrodin Block
Skullclamp Magic: The Gathering-Commander (Uncommon) Magic: The Gathering-Commander Miscellaneous
Skullclamp From the Vault: Exiled (Mythic Rare) From the Vault: Exiled Miscellaneous
Skullclamp Vintage Masters (Mythic Rare) Vintage Masters Miscellaneous
Skullclamp Commander 2014 (Uncommon) Commander 2014 Miscellaneous

This card has restrictions in the following formats:

Format Legality
Modern Banned
Mirrodin Block Banned
Legacy Banned
Vintage Legal
Freeform Legal
Prismatic Banned
Tribal Wars Legacy Banned
Singleton 100 Banned
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.