This card was printed in the following sets:

Card Name: Symbol Set Block
Niv-Mizzet, the Firemind Guildpact (Rare) Guildpact Ravnica Block
Niv-Mizzet, the Firemind From the Vault: Dragons (Rare) From the Vault: Dragons Miscellaneous
Niv-Mizzet, the Firemind Duel Decks: Izzet vs. Golgari (Mythic Rare) Duel Decks: Izzet vs. Golgari Miscellaneous
Niv-Mizzet, the Firemind Modern Masters 2015 Edition (Rare) Modern Masters 2015 Edition General
Niv-Mizzet, the Firemind Commander 2017 (Rare) Commander 2017 General
Niv-Mizzet, the Firemind Masters 25 (Rare) Masters 25 Miscellaneous
Niv-Mizzet, the Firemind Guild Kit: Izzet (Rare) Guild Kit: Izzet Miscellaneous

This card has restrictions in the following formats:

Format Legality
Modern Legal
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.