Divine Bolt

A stroke of brilliant golden power forming a line 100 feet long and 5 feet wide blasts out from you in a direction you choose. Each creature in the line must make a Dexterity saving throw. A creature takes 8d6 radiant damage on a failed save, or half as much damage on a successful Additionally, creatures that fail their saving throw are also  illuminated by a golden sparkling light for 1 minute. Attacks against illuminated creatures are made with advantage. Creatures that make their saving throw are not illuminated

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d6 for each slot level above 5th.