Enemy color
Enemy colors are two opposed colors of the color pie (
, 
), (, 
), (, 
), (, 
), (, ). A deck may be enemy color (i.e. Phyrexian Poison). A multicolored card may require mana from enemy colors in order to play it (i.e. Angel of Despair).
Enemy colors naturally repel each other, and are often hosers of eachother:
White / Black
To be written
Multicolored Examples
To be written
Black / Green
To be written
Multicolored Examples
To be written
Green / Blue
To be written
Multicolored Examples
To be written
Blue / Red
To be written
Multicolored Examples
To be written
Red / White
To be written
Multicolored Examples
To be written