Arcane Swords

The user summons 3 spectral swords that are bound to the user and are under their mental command, they can be fired as a ranged spell attack or held In hand for a Melee spell attack.

These swords do 1d10 Force damage per sword and they don't vanish, even after use.

As a bonus action, you can call a sword to hand to fight for one or two weapon fighting 

(Add one sword for every use of the spell slot above first level. Make the swords damage die be 2d10 for 5th, 3d10 for 7th, and 4d10 for 9th)