Eilistraee's Moonbeam

You call down a pillar of moonlit grace infused with the divine presence of the Dark Maiden. All creatures within the area take 1d10 Cold and 1d10 Radiant damage. You can use an action to move it 30ft.

On Save: Targets still take Half Damage.

At Higher Levels: You add 1d10 Cold or Radiant damage on every odd level, and the opposite damage type on every even level. You may never have more than a 1d10 difference in damage types per upcast.