Sunbeam

Casting Time: 1 action
Range: Self (60-foot line)
Duration: Concentration, up to 1 minute
A beam of brilliant light flashes out from your
hand in a 5-foot-wide, 60-foot-line. Each
creature in the line must make a Constitution
saving throw. On a failed save, a creature takes
6d8 radiant damage and is blinded until your
next turn. On a successful save, it takes half as
much damage and isn't blinded by this spell.
See PHB, pg. 279