This card was printed in the following sets:

Card Name: Symbol Set Block
Unstable Mutation Revised Edition (Common) Revised Edition Core Sets
Unstable Mutation Fourth Edition (Common) Fourth Edition Core Sets
Unstable Mutation Fifth Edition (Common) Fifth Edition Core Sets
Unstable Mutation Arabian Nights (Common) Arabian Nights Early Expansions
Unstable Mutation Time Spiral "Timeshifted" (Special) Time Spiral "Timeshifted" Time Spiral Block
Unstable Mutation Ultimate Masters (Uncommon) Ultimate Masters Miscellaneous

This card has restrictions in the following formats:

Format Legality
Modern Legal
Legacy Legal
Vintage Legal
Commander Legal
Pauper 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.