You can channel the sun, but you aren't strong enough to wield it.

As a Voidwalker, we have the power of a collapsing star in our bare hands, as well as the power to steal the very lifeforce from others. As a Sunsinger, our Radiance threatens to separate us from material form. We practically become gods, angels of death with whom death has no hold. As a Stormcaller, the wrath of the heavens is at our fingertips. Momentum itself is our ally, for even as the enemy strikes us, they seal their own fate. And despite all of this raw power, our focus is absolute. Harmony within, Hurricane without. We are merely the eye of the storm.

1 may kill a sunbro, 2 and 3 will not kill a sun bro.