土地

:あなたの統率者の固有色のうち好きな色1色のマナ1点を加える。
If you don't have a commander, Command Tower's ability produces no mana.
If you have two commanders, the ability adds one mana of any color in their combined color identities.
If your commander is a card that has no colors in its color identity, Command Tower's ability produces no mana. It doesn't produce
.