Wrathful Skies

is a Tier 6 Lightning + Air Path Spell.

The caster conjures a massive thunderstorm supercell over a large volume of space, easily covering the size of a city and beyond, and hundreds of meters high at base tier. Lightning strikes incessantly at targets within the area of effect (many times as intense as an ordinary thunderstorm). The required investment into this spell is substantial; the thunderstorm gradually manifests over the first 5 minutes of maintaining the spell, and only dissipates over 5 minutes after the caster stops maintaining the spell.