Holy Star of Mystra

You create a glowing mote of energy that hovers above you for the duration. The mote sheds Bright Light in a 5-foot radius and Dim Light for an additional 5 feet.

When you cast this spell and as a Bonus Action on later turns, you can unleash a shining bolt from the mote, targeting one creature within 120 feet of yourself. Make a ranged spell attack. On a hit, the target takes Force or Radiant damage (your choice) equal to 4d10 plus your spellcasting ability modifier.

In addition, while the mote is present, you have Cover, and if you succeed on a saving throw against a spell of level 7 or lower that targeted only you and didn't create an area of effect, you can take a Reaction to deflect that spell back at the spell's caster; the caster makes a saving throw against that spell using that caster's own spell save DC.