Capítulo 591: DXCI. This Is Your Destiny

Dag was this for them, a ray of light, which held the darkness within himself, avoiding hurting others, protecting the weakest, and spreading beliefs and knowledge.

Freydis' flickering hand grabbed the sleeve of Reidar's jacket as if she needed to cling to something, both materially and spiritually. 

Instead, he stood still without ever looking away, narrowing his eyes and focusing on Dag's face, knowing that inside him there was a fire, some incredibly powerful energy, waiting only to be unlocked.

...

While Dag's long blonde hair was loose and floating forward in the direction of the sphere, his gaze slowly rose towards the enemy.

At the same time, the runes tattooed on his right arm began to shine, emitting a strong white light visible even meters away.