End of the Maze

You may put Gate cards into your deck,
regardless of their color identity. During
deckbuilding, you may add up to 1 copy
of each of the following cards -
Maze's End, Azorius Guildgate, Dimir Guildgate,
Rakdos Guildgate, Gruul Guildgate, Selesnya Guildgate, Orzhov Guildgate, Izzet Guildgate,
Golgari Guildgate, Boros Guildgate,
Simic Guildgate and Gateway Plaza.
(Your commander may normally bear only one of
each type of Regalia.)