Fallen Citadel

{t}: Add {w} or {c} to your mana pool.
{t}: Add {w}{c} to you mana pool. Only activate
this ability if you control Frozen Citadel or
Swamp Citadel.
{t} Add {w}{w}{c}{c} to your mana pool. Only
activate this ability if you control Frozen Citadel
and Swamp Citadel.