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.
The Chamber of the Guildpact has fallen silent, its bright promise broken.
When Plaza of Harmony enters the battlefield, if you control two or more Gates, you gain 3 life. {T}: Add {C}. {T}: Add one mana of any type that a Gate you control could produce.
[+1]: You gain 2 life and draw a card. [–1]: Tap target creature. It doesn't untap during its controller's next untap step. [–9]: Tap all permanents target opponent controls. That player skips their next untap step.