As an action, a plume of poison blooms at a point you choose within 35 meters. Each creature in a sphere centered on that point must make a Fortitude saving throw.
On a failed save, a creature takes 5d6 poison damage and is poisoned for the duration.
On a successful save, a creature takes half as much damage and isn’t poisoned. At the end of each of its turns, a poisoned creature can repeat the saving throw, ending the effect on itself on a success.
The poison spreads around corners.
You can increase the damage by 2d6 for each additional mana or psi expended.