Dancing Rune Weapon

The following spell name is directly taken from Blizzard, but I owe nothing related to World of Warcraft nor Blizzard. I merely wish to bring the spell to the masses. All rights go to Blizzard Entertainment.

Creator note: This spell might feel extremely powerful, and probably is, so make sure to consult your DM before use. I made it with the Death Knights from the World of Warcraft universe in mind, therefor making it powerful.    

You conjure a copy of one of your weapons, materializing within 10 feet of the caster in a non-occupied space. The weapon will mimic each melee attack or melee spell attack, but will only deal half of the total damage done. The weapon can target a separate target, but it must be within melee weapon range. Lastly, the weapon can move up to half of the conjurer’s movement as a bonus action, commanded by the conjurer. Make a separate melee weapon attack for the Dancing Rune Weapon. The weapon have an AC of 13 and health equal to half of the conjurer`s. Dancing Rune Weapon lasts for 1 minute.

At Higher Levels. Increasing the number of Dancing Rune Weapons by 1 for each spell slot used above 3rd level.