Vision of Yogg Karush

A wave of psychic energy pours out in a 60-foot-radius sphere from a point within range. Each creature in that area must make a wisdom saving throw. A target takes 6d6 psychic damage on a failed save and is frightened of the caster, or half as much damage on a successful one and not frightened, as an image of the great beast Yogg Karush fills their minds with horror. Creatures that are frightened  may reroll their wisdom save at the start of their turn to end the effect.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the damage increases by 2d6 for each slot level above 6th.