Backlash

"Strike me if you dare, but beware the blowback!"

You surround "Yourself" or an "Ally" with a pale thin aura of shimmering white light. The next creature that succeeds a melee attack against the warded target is struck by this shimmering force that attempts to repel them away.

This creature must make a Constitution saving throw or be knocked back 10ft + 5ft for every 5 character levels.

At Higher Levels. This spell gains an additional 5 foot for every 5 Character levels. *Level 5 = 15ft // Level 10 = 20ft // Level 15 = 25ft // Level 20 = 30ft 

**The knockback effect is doubled if the target rolls a 1