Mirri, Keeper of the Grove

Eminence- As long as Mirri, Keeper of the Grove
is in your command zone or on the battlefield,
lands you control have "{t}: Add one mana of
any color."
Severance- When you cast this spell, if white
mana was spent, gain 5 life. If blue mana was
spent, draw a card. If black mana was spent,
destroy target nonblack creature. If red mana
was spent, deal 3 damage to each opponent. If
green mana was spent, add two mana of
any color.