D.18.1- These formats follow the Standard (Type 2) tournament rules for deck construction but only allow cards from a given "block" rather than from the larger list of sets.
D.18.2- The current "blocks" are: Ice Age/Homelands/Alliances, Mirage/Visions/Weatherlight, Tempest/Stronghold/Exodus, Urza's Saga/Urza's Legacy/Urza's Destiny, Mercadian Masques/Nemesis/Prophecy, Invasion/Planeshift/Apocalypse, and Odyssey/Torment/Judgment.
D.18.3- Some cards are 'banned' from the Ice Age/Homelands/Alliances format so that none may appear in a deck or sideboard. These cards are: [Tournament Rules 1997/10/01] Amulet of Quoz, Thawing Glaciers, Timmerian Fiends, Zuran Orb This format is sanctioned as an Extended format. [Tournament Rules 1997/10/01]
D.18.4- Some cards are 'banned' from the Mirage/Visions/Weatherlight format so that none may appear in a deck or sideboard. These cards are: [Tournament Update 1997/06/01] Squandered Resources
D.18.5- Some cards are 'banned' for the Tempest/Stronghold/Exodus format so that none may appear in a deck or sideboard. These cards are: [Tournament Update 1998/06/01] Cursed Scroll
D.18.6- Some cards are 'banned' for the Urza's Saga/Urza's Legacy/ Urza's Destiny format so that none may appear in a deck or sideboard. These cards are: [Tournament Update 1999/03/01] [Update 1999/07/01] Gaea's Cradle, Time Spiral, Voltaic Key, Memory Jar, Tolarian Academy, Windfall, Serra's Sanctum,
D.18.7- Some cards are 'banned' for the Mercadian Masques/Nemesis/Prophecy format so that none may appear in a deck or sideboard. These cards are: [Tournament Update 2000/06/01] Lin Sivvi, Defiant Hero, Rishadan Port
D.18.8- No cards are 'banned' for the Invasion/Planeshift/Apocalypse format.
D.18.9- No cards are 'banned' for the Odyssey/Torment/Judgment format.
D.18.10- No cards are 'banned' for the Onslaught/Legions/Scourge format.
D.18.Ruling.1- Only cards explicitly banned from this format are banned. The Standard (Type 2) tournament list is not necessarily true.
D.18.Ruling.2- The foil Lightning Bolts found in Urza's Destiny packs are not legal in the Urza block. [Donais 1999/06/08]