- "The unbridled fury of the Stormtrance contrasts with the control that the Stormcaller exercises as she pulls down the sky."
- —Ikora Rey
- "Focus your Light to call forth a powerful Arc storm, and siphon it, channeling lightning through your fingertips to send it surging between your targets. A Warlock in Stormtrance is exercising such unbreakable focus that the Arc energy they summon draws them off the ground, the air humming and crackling around them. Like lightning you bend your path forward through the air, striking down anything too slow escape the storm."
- —Grimoire Description
A rare ability, the Stormtrance is summoned by focusing Arc energies within and then unleashing them in a continuous stream of lightning, dealing damage to enemies targeted by it. As it deals damage the lightning spreads to other enemies, wiping out large numbers of enemies in a short amount of time. When upgraded, Stormtrance can emit a shockwave that repels and damages nearby enemies, chain lightning twice as far, or teleport short distances.