Aetherforged Armament

Aetherforged Armament
A lattice of living metal and aetheric filaments integrated into your limb. While attuned, this weapon grants the following benefits:
+3 Weapon: You gain a +3 bonus to attack and damage rolls made with this weapon.
Aetheric Slice: When you are attuned and while charged, the weapon deals an extra 2d8 force damage on hit.
Aetheric Expungement: As a bonus action, you can expend a charge to unlease a pulse of aether. Each creature of your choice within 15 feet must succeed on a Constitution saving throw (DC 18) or take 4d8 force damage and be pushed 10 feet away from you. 
Integrated Fortification: While the armament is integrated and you are not incapacitated , you gain +2 to AC as long as you have charges.
Aether Reservoir: The armament has 4 charges. You can expend charges
Aetheric Binding: This weapon binds with the Users mind allowing one to add their intelligence instead of strength to the to hit.  
Attunement restriction: Requires attunement by an Artificer or a creature with Constructed Resilience. If Attuned, the weapon proficiency becomes simple as well as adaptable to add Intelligence . 

Proficiency with a Longsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Damage: Force, Bonus: Magic, Bonus: Armor Class, Proficiency: Longsword, Bonus: Magic Item Attack With Intelligence, Artificer or creature with Constructed Resilience , Artificer, Versatile, Sap