This card was printed in the following sets:

Card Name: Symbol Set Block
Kilnmouth Dragon Legions (Rare) Legions Onslaught Block
Kilnmouth Dragon Archenemy (Rare) Archenemy Miscellaneous
Kilnmouth Dragon Duel Decks: Knights vs. Dragons (Rare) Duel Decks: Knights vs. Dragons Miscellaneous

This card has restrictions in the following formats:

Format Legality
Legacy Legal
Vintage Legal
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.

Gatherer works better in the Companion app!