Block Constructed is a format (or rather a collection of formats) that allows for cards of one block to be played, save any banned cards.
Constructed decks must contain a minimum of sixty cards. There is no maximum deck size; however, you must be able to shuffle your deck with no assistance. If a player wishes to use a sideboard, it must contain exactly fifteen cards.
With the exception of basic land cards, a player’s combined deck and sideboard may not contain more than four of any individual card, counted by its English card title equivalent. All cards named Plains, Island, Swamp, Mountain, and Forest are basic. (The five Ice Age block snow-covered lands — Snow-Covered Plains, Snow-Covered Island, Snow-Covered Swamp, Snow-Covered Mountain, and Snow-Covered Forest — are also basic lands, but are only permitted in formats that allow the Ice Age block to be used.)
Block Constructed formats
- Return to Ravnica block (Return to Ravnica, Gatecrash, Dragon's Maze)
- Innistrad block (Innistrad, Dark Ascension, Avacyn Restored)
- Scars of Mirrodin block (Scars of Mirrodin, Mirrodin Besieged, New Phyrexia)
- Zendikar block (Zendikar, Worldwake, Rise of the Eldrazi)
- Alara block (Shards of Alara, Conflux, Alara Reborn)
- Lorwyn–Shadowmoor block (Lorwyn, Morningtide, Shadowmoor, Eventide)
- Time Spiral block (Time Spiral, Planar Chaos, Future Sight)
- Ravnica block (Ravnica: City of Guilds, Guildpact, Dissension)
- Kamigawa block (Champions of Kamigawa, Betrayers of Kamigawa, Saviors of Kamigawa)
- Mirrodin block (Mirrodin, Darksteel, Fifth Dawn)
- Onslaught block (Onslaught, Legions, Scourge)
- Odyssey block (Odyssey, Torment, Judgment)
- Invasion block (Invasion, Planeshift, Apocalypse)
- Masques block (Mercadian Masques, Nemesis, Prophecy)
- Urza's block (Urza's Saga, Urza's Legacy, Urza's Destiny)
- Tempest block (Tempest, Stronghold, Exodus)
- Mirage block (Mirage, Visions, Weatherlight)
- Ice Age block (Ice Age, Alliances, Coldsnap)
Banned cards
Innistrad Block
Mirrodin Block
- Æther Vial
- Ancient Den
- Arcbound Ravager
- Darksteel Citadel
- Disciple of the Vault
- Great Furnace
- Seat of the Synod
- Tree of Tales
- Vault of Whispers
- Skullclamp
Masques Block
Urza Block
- Gaea's Cradle
- Memory Jar - The only card to have been the subject of an emergency ban.
- Serra's Sanctum
- Time Spiral
- Tolarian Academy
- Voltaic Key
- Windfall