Cthulhu by Torchlight
Chaosium
Chaosium
Level 1 Conjuration (Sorcerer, Warlock, Wizard)
Casting Time: Action
Range: Self
Components: V, S
Duration: 1 round
You unleash a wave of swirling shadows that fills an area next to you. Each creature in a 10-foot Cube of Darkness originating from you when you cast the spell makes a Wisdom saving throw. On a failed save, a creature takes 2d8 psychic damage and is Blinded until it is no longer in the area of Darkness. On a successful save, it takes half as much damage and isn’t Blinded. The Darkness lasts until the end of your next turn.
Using a Higher-Level Spell Slot. The size of the cube increases by 5 feet for each spell slot level above 1.