Mind Blast

You unleash a wave of psychic energy. Each
creature in a 30 ft cone makes an Int save. On a
failure, it takes 4d8 psychic damage and is
stunned for 1 minute. On a success, it takes half
as much damage and isn’t stunned. At the end
of each of its turns, the creature makes another
Int save. On a success, it is no longer stunned.
At Higher Levels. When you cast this spell using
a spell slot of 6th level or higher, the damage
increases by 1d8 for each slot level above 5th.