You fire a streaking beam of iridescent light at a creature within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 radiant damage. A creature reduced to 0 hit points by this spell is knocked unconscious rather than killed.

This spell's damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).