Weapon Throw

This spell can be used to propel a melee weapon 30ft forward in a line, before attempting to return to the wielder's hands at the end of the turn. Any creature in the weapon's path must succeed on a Dexterity saving throw or take damage equal to twice the weapon's damage dice, omitting any ability modifiers that would be added in a normal attack.

If the weapon must travel more than 30ft to return to the caster's hand, it travels 30ft before falling to the ground. 

Add the weapon's damage dice once more for each level it is cast at above 1st level.