Valkyrie's Strike

You make a melee attack with a weapon against one creature, otherwise the spell fails. Crackling divine energy imbues one weapon you are holding. On a hit, the target suffers the attack's normal effects, and must make a Wisdom saving throw or take 1d8 radiant damage, or 2d8 if the target is an aberration, fiend, or undead.

The spell's damage increases by 1d8 when you reach 5th (2d8/3d8), 11th (3d8/4d8), and 17th (4d8/5d8) levels. In addition, after 5th level, this spell does Radiant damage equal to your spellcasting modifier on a successful hit.