Astral Beam

You call down a pillar of energy 10 feet wide and 30 feet high. All creatures who start their turns within the pillar must make a Wisdom saving throw. Upon failure, the creature takes 4d10 radiant damage and is stunned until the start of their next turn. Half as much damage and no stun effect on a success. This pillar may be moved up to 20 feet as an action. This spell ignores resistances and immunities granted by being incorporeal.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d10 for each slot level above 3rd.