Avatar of Augmentation

As you cast Avatar of Augmentation, you may pay {b}{b}{r}{r}{c} in addition to its normal mana cost.
When Avatar of Augmentation enters the battlefield, Augment all creatures. If you
payed the additional cost while casting Avatar of Augmentation, Augment all creatures you control.
During your upkeep, destroy one creature each opponent controls that is not Augmented
Avatar of Augmentation's power and toughness
are equal to the number of creatures you control
that are Augmented