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
Skullclamp Commander 2015 (Uncommon) Commander 2015 General

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.