Five Point Strike (Akali Q)

You unleash kunai in a 45-degree 20 foot cone in front of you. Each creature in the area must make a Dexterity saving throw. On a failed save, a target takes 2d8 + 3 piercing damage, or half as much on a successful one.

Using a Higher-Level Spell Slot. The damage increases by 1d8 for each spell slot level above 2.