As an action, you create a cloud of acidic, green fog in a sphere centered on a point you choose within 35 meters. The cloud spreads around corners and is heavily obscured. It lasts for the duration or until a wind of moderate or greater speed (at least 16 kilometers per hour) disperses it.
A creature that enters the spell’s area for the first time on a turn or starts its turn there must make a Fortitude saving throw.
On a failed save, a creature takes 2d6 acid damage immediately and additional acid damage equal to half the amount of acid damage dealt at the end of its next turn.
On a successful save, a creature takes half the initial damage and no damage at the end of its next turn. Creatures are affected even if they hold their breath or don’t need to breathe.
The cloud moves 3 meters away from you in a direction that you choose at the start of each of your turns.
You can increase the damage by 1d6 for each additional mana or psi expended.