This card was printed in the following sets:

Card Name: Symbol Set Block
Loyal Sentry Tenth Edition (Rare) Tenth Edition Core Sets
Loyal Sentry Starter 1999 (Rare) Starter 1999 Miscellaneous
Loyal Sentry Duel Decks: Elspeth vs. Tezzeret (Rare) Duel Decks: Elspeth vs. Tezzeret Miscellaneous
Loyal Sentry Masters 25 (Common) Masters 25 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!