Moonbeam

Range: 120 feet,target: 5-foot radius, 40-foot high, duration: concentration, up to 1 minute.
When a creature enters the spell's area for the
first time or starts its turn there, it takes
2d{10} or half as much damage depending on the constitution saving throw. On each of your
turns after you cast this spell, you can use an
action to move the beam 60 feet in any direction.
When you cast this spell using a
spell slot of 3rd level or higher, the damage
increases by 1d{10} for each slot level abov