Enter the Avatar State

Add {w}{w}{u}{u}{r}{r}{g}{g} to your mana pool.
The Avatar State is a defense mechanism, designed
to empower you with the skill and knowledge of all the
first Avatars. The glow is the combination of all your
past lives focusing their energy through your body. In
the Avatar State, you're at your most powerful... but
you are also at your most vulnerable.
-Avatar Roku