As A-Thran Portal enters the battlefield, choose a basic land type. Thran Portal is the chosen type in addition to its other types. Mana abilities of A-Thran Portal cost an additional 1 life to activate.

Azorius Guildgate enters the battlefield tapped. {T}: Add {W} or {U}.

{T}: Add {C}. {2}, {T}: Add X mana of any one color, where X is the number of other Gates you control.

{T}: Add {C}. {2}, {T}: Target creature gets +X/+X until end of turn, where X is the number of Gates you control. Activate only as a sorcery.

Black Dragon Gate enters the battlefield tapped. As Black Dragon Gate enters the battlefield, choose a color other than black. {T}: Add {B} or one mana of the chosen color.

Boros Guildgate enters the battlefield tapped. {T}: Add {R} or {W}.

Citadel Gate enters the battlefield tapped. As Citadel Gate enters the battlefield, choose a color other than white. {T}: Add {W} or one mana of the chosen color.

Cliffgate enters the battlefield tapped. As Cliffgate enters the battlefield, choose a color other than red. {T}: Add {R} or one mana of the chosen color.

Dimir Guildgate enters the battlefield tapped. {T}: Add {U} or {B}.

Gate of the Black Dragon enters the battlefield tapped. {3}{B}, {T}: Seek a nonland card. Activate only once. {T}: Add {B}.

Gate to Manorborn enters the battlefield tapped. {3}{G}, {T}: Seek a nonland card. Activate only once. {T}: Add {G}.

Gate to Seatower enters the battlefield tapped. {3}{U}, {T}: Seek a nonland card. Activate only once. {T}: Add {U}.

Gate to the Citadel enters the battlefield tapped. {3}{W}, {T}: Seek a nonland card. Activate only once. {T}: Add {W}.

Gate to Tumbledown enters the battlefield tapped. {3}{R}, {T}: Seek a nonland card. Activate only once. {T}: Add {R}.

Gateway Plaza enters the battlefield tapped. When Gateway Plaza enters the battlefield, sacrifice it unless you pay {1}. {T}: Add one mana of any color.

Golgari Guildgate enters the battlefield tapped. {T}: Add {B} or {G}.

Gates you control enter the battlefield untapped. {T}: Add {C}. {T}: Add one mana of any color that a Gate you control could produce.

Gruul Guildgate enters the battlefield tapped. {T}: Add {R} or {G}.

{T}: Add {C}. {1}, {T}: Add one mana of any color. {1}, {T}, Tap an untapped Gate you control: Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Izzet Guildgate enters the battlefield tapped. {T}: Add {U} or {R}.

Manor Gate enters the battlefield tapped. As Manor Gate enters the battlefield, choose a color other than green. {T}: Add {G} or one mana of the chosen color.

Orzhov Guildgate enters the battlefield tapped. {T}: Add {W} or {B}.

Rakdos Guildgate enters the battlefield tapped. {T}: Add {B} or {R}.

Sea Gate enters the battlefield tapped. As Sea Gate enters the battlefield, choose a color other than blue. {T}: Add {U} or one mana of the chosen color.

Selesnya Guildgate enters the battlefield tapped. {T}: Add {G} or {W}.

Simic Guildgate enters the battlefield tapped. {T}: Add {G} or {U}.

As The Black Gate enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped. {T}: Add {B}. {1}{B}, {T}: Choose a player with the most life or tied for most life. Target creature can't be blocked by creatures that player controls this turn.