As an action, a beam of brilliant light flashes out from your hand. Each creature in a cone or line must make a Fortitude saving throw. Undead and oozes have disadvantage on this saving throw.
On a failed save, a creature takes 2d4 radiant damage and is blinded until the end of its next turn.
On a successful save, it takes half as much damage and isn’t blinded by this spell.
You can increase the damage by 2d4 for each additional mana or psi expended.