The golden bolt leaves my hand, and the iron-bearded one is already dead; he just doesn't know it yet, and that is exactly the sort of assumption that had killed me multiple times when I fought Vrakth.
Tribulation lightning targets the soul, and once it is locked on, it cannot be dodged. The moment I fired that bolt of lightning from my hand, I could see in the face of the Arcanist that he immediately detected this.
The crystalline souls of Arcanists were extremely vast and sensitive, and they were able to read magic in a way that I was only becoming familiar with. The golden bolt was an inch near his face when multiple purple shields appeared in front of him, blocking the lightning, and although the lightning was eating through the shield, the Arcanist could always create more to wear away the power of the bolt.
