Mirage | 
| Released | October 1996 December 5, 2005 (MTGO) | 
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| Size | 350 cards (110 commons, 110 uncommons, 110 rares, 20 basic lands) | 
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| Keywords | Flanking, phasing | 
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| Mechanics | Poison, Nightstalkers, Insta-Enchantments | 
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| Designers | Bill Rose (lead), Joel Mick, Charlie Catino, Don Felice, Howard Kahlenberg, Elliot Segal | 
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| Development code | Sosumi/Menagerie | 
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| Expansion code | MIR | 
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| Mirage | 
Visions | 
Weatherlight |  
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Visions | 
| Released | February 1997 April 10, 2006 (MTGO) | 
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| Size | 167 cards (62 commons, 55 uncommons, 50 rares) | 
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| Keywords | Flanking, Phasing, cumulative upkeep | 
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| Mechanics | Come into play abilities, poison, insta-enchantments | 
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| Designers | Bill Rose (lead), Joel Mick, Charlie Catino, Don Felice, Howard Kahlenberg, Elliot Segal | 
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| Development code | Mirage, Jr. | 
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| Expansion code | VIS | 
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| Mirage | 
Visions | 
Weatherlight |  
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WeatherlightThran Tome  | 
| Released | June 1997 December 12, 2007 (MTGO) | 
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| Size | 167 cards (62 commons, 55 uncommons, 50 rares) | 
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| Keywords | Flanking, Phasing, Cumulative Upkeep | 
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| Mechanics | Graveyard matters | 
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| Development code | Mochalatte | 
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| Expansion code | WTH | 
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| Mirage | 
Visions | 
Weatherlight |  
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Mirage was the first official block structure in Magic: The Gathering. This new block structure consisted of three expansion sets and would continue for nearly two decades, finally ending with Khans of Tarkir in 2014. The new block structure also set up the precedent that the first set in the block also became the name for the entire block. Mirage block consisted of three sets: Mirage, Visions and Weatherlight.