Sword fury

You summon 4 astral longswords which can attack one target as an action within range. When you attack a target you role a ranged spell attack for each sword, on a hit the sword does 2d10 damage plus your spell attack modifier. At the end of the turn the swords return to the caster and can be used for opportunity attacks which only uses one sword.

For every level above 6th there is an additional sword.

Once this spell has been cast it can't be cast until another short or long rest.