Kryx RPGThemesMonsters
concentration, 1 minute/mana or psi

As an action, you fill the air with spinning daggers in a 1.5-meters cube within 18 meters. A creature must make a Reflex saving throw when it enters the spell’s area for the first time on a turn or starts its turn there. A creature takes 3d4 piercing damage on a failed save, or half as much damage on a successful one.

Augment

You can increase the damage by 4d4 for each additional mana or psi expended.