SPOILER ALERT: Lore Discussion

[Mauricius]

Speaking of Arkovian Gods. See the skill description for Arcane Currents. I think i already put this under attention a long time ago.

Grim Misadventure #122: Devoted Arkovia

Attak Seru, the Mirage
”Attak Seru was the matron of spellweaving, the protector of those daring enough to wield magic. All Arkovian rituals had the symbol of Attak Seru inscribed within the runic circle for precaution; but not even her wards were enough to stave off the effects of the necromancer’s curse.”

Attak Seru grants you the power known as Arcane Current. This clever rune appears on the ground near your foes and rapidly launches streams of arcane energy that damage enemies in a line

Also regarding storm serpent:

Grim Misadventure #122: Devoted Arkovia

Ultos, Shepherd of Storms
”Ultos was the lesser of his celestial brethren in Arkovian lore, but nevertheless remained a powerful symbol, for it was his rains that allowed the harvest to grow and his lightning that caused unspeakable destruction. Somewhat ironically given his status, Ultos is the only Arkovian god whose worship endured beyond the fall of the empire.”

The hand of Ultos conjures lightning from your very being, which then cascades across the vast legions of your enemies.

Spelling might have changed over time, or perhaps altered by the luminari to sound more ominous.