Celestial Blades

A dozen or so blades of pure light are flung towards a target. The conjurer rolls a d10. The number rolled is the number of blades conjured. Each blade deals 1d10 radiant damage and may knock the target prone (heads) or push them back 10ft (tails). Flip a coin.

The target makes a DEX save equal to your spellcasting modifier + DEX + WIS. On a success, the target takes 1/2 damage rounded up, and ignores being knocked prone or being pushed back.