Timelost Swordsman: Multiversal Artillerist.

This Timelost Art is based on being able to pull whatever weapon is needed in the exact moment you need it; from the Aether. 

Based on ancient rituals from pre-collapse Shadar Kai, this Timelost Art lets the user literally pull the needed weapon from nothing and manifest it into existence. 

Mulitversal Armament: Aether Weapon

You gain the ability to pull weapons from a small portal you reach your hand into. You can add any common rarity weapon into your inventory. You must first return what weapon you last pulled out before pulling out another.

This Weapon is referred to as your Aether Weapon throughout this subclass.

Multiversal Displacement.

Starting at 3rd level, you can spend a bonus action after attacking a target to try and banish its weapons. The target must make a STR saving throw with a DC of 14. This save increases by 5 when you hit level 11, and another 5 when you hit level 17. You can use this feature three times, and you regain all expended uses of it when you finish a long rest.

Aether Weapon: Soulbound Edge.

The Aether Weapons you summon are now summoned at a +1.

They cannot be removed from your person without your mental consent.

When throwing an Aether Weapon, when they hit the target they immediately return to your hand.

Aether Weapon: Concentrated Edge:

You can now summon two Aether Weapons at a time, allowing one to be handed to someone else.

When you attack and hit a target that is concentrating on a spell, the minimum DC of their concentration check is a 16.

Aether Weapon: Elemental Armory.

Your Aether Weapons become a +2. 

When you summon the Aether Weapon, you can choose the type of damage it deals. This replaces the weapons original damage. 

Aether Weapon: Realmsunderer.

Taking this level in this class changes your race into a Shadar Kai. This can only be reversed with divine intervention and the spell Wish.
You can now cast Misty Step as an attack action. This can be used consecutively.
Your Aether Weapons become +3.