+Citadel, +Gate (2)
Citadel Gate enters tapped.
As Citadel Gate enters, choose a color other than white.
: Add or one mana of the chosen color.
(: Add .)
Gate to the Citadel enters the battlefield tapped.
, : Seek a nonland card. Activate only once.
Gatherer works better in the Companion app!
: Add 
or one mana of the chosen color.