This card was printed in the following sets:

Card Name: Symbol Set Block
Viridian Emissary Mirrodin Besieged (Common) Mirrodin Besieged Scars of Mirrodin
Viridian Emissary Planechase 2012 Edition (Common) Planechase 2012 Edition Miscellaneous
Viridian Emissary Commander 2015 (Common) Commander 2015 General
Viridian Emissary Planechase Anthology (Common) Planechase Anthology General
Viridian Emissary Commander Anthology (Common) Commander Anthology 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.

Gatherer works better in the Companion app!