This card was printed in the following sets:

Card Name: Symbol Set Block
Burning-Tree Emissary Gatecrash (Uncommon) Gatecrash Return to Ravnica
Burning-Tree Emissary Modern Masters 2017 Edition (Common) Modern Masters 2017 Edition General
Burning-Tree Emissary Duel Decks: Mind vs. Might (Uncommon) Duel Decks: Mind vs. Might Miscellaneous
Burning-Tree Emissary Guild Kit: Gruul (Uncommon) Guild Kit: Gruul
Burning-Tree Emissary Historic Anthology 1 (Uncommon) Historic Anthology 1

This card has restrictions in the following formats:

Format Legality
Pioneer Legal
Modern Legal
Legacy Legal
Vintage Legal
Commander Legal
Pauper Legal
Historic 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!