First printed in Weatherlight (1997)
Paradigm Shift 

Sorcery
Exile all cards from your library. Then shuffle your graveyard into your library.
In the last 30 days 0.1% of Commander decks played it (5 of 6150). Most played in Fblthp, Impossibly Lost.
Combos
8 combos from Commander Spellbook, the most popular first.
- Exile your library, Win the game: Paradigm Shift + Thassa's Oracle
- Exile your library, Win the game: Laboratory Maniac + Paradigm Shift
- Exile your library, Win the game: Jace, Wielder of Mysteries + Paradigm Shift
- Exile each opponent's library: Hive Mind + Paradigm Shift + Soul-Guide Lantern
- Exile each opponent's library: Hive Mind + Paradigm Shift + Strionic Resonator
- Exile each opponent's library: Hive Mind + Paradigm Shift + Sentinel Totem
- Exile each opponent's library: Hive Mind + Lithoform Engine + Paradigm Shift
- Exile each opponent's library: Hive Mind + Paradigm Shift + Veyran, Voice of Duality
Legality
Constructed
- Standard Not legal
- Pioneer Not legal
- Modern Not legal
- Legacy Legal
- Vintage Legal
- Pauper Not legal
- Future Standard Not legal
- Historic Not legal
- Timeless Not legal
- Alchemy Not legal
- Penny Dreadful Not legal
- Premodern Legal
- Old School 93/94 Not legal
Singleton
- Gladiator Not legal
Commander formats
- Commander Legal
- Duel Commander Legal
- Pauper Commander Not legal
- PreDH Legal
- Tiny Leaders Legal
- Oathbreaker Legal
- Brawl Not legal
- Standard Brawl Not legal
- Competitive Brawl Not legal