This card was printed in the following sets:

Card Name: Symbol Set Block
Armadillo Cloak Invasion (Common) Invasion Invasion Block
Armadillo Cloak Archenemy (Common) Archenemy Miscellaneous
Armadillo Cloak Duel Decks: Phyrexia vs. the Coalition (Common) Duel Decks: Phyrexia vs. the Coalition Miscellaneous
Armadillo Cloak Vintage Masters (Uncommon) Vintage Masters Miscellaneous
Armadillo Cloak Eternal Masters (Uncommon) Eternal Masters General

This card has restrictions in the following formats:

Format Legality
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!