Pact Weapon

Conjuration Cantrip (Warlock)
Casting Time: Bonus Action
Range: Self
Component: S
Duration: 24 hours

Tracing arcane sigils in the air, you conjure a Simple or Martial weapon of your choice in your outstretched hand, or you create a bond with a magic weapon you touch. The weapon you conjure or touch must lack the Heavy property, and the spell fails if you touch a magic item that is attuned to someone else.

For the duration, the weapon grants you the following benefits:

Eldritch Warrior. When you attack with the weapon, you can use your spellcasting ability modifier for the attack and damage rolls, instead of using Strength of Dexterity.
Proficiency. You have proficiency with the weapon.
Returning Weapon. If the weapon has the Thrown property, the weapon returns to your hand immediately after hitting or missing a target.

The spell ends early if you cast the spell again or die. When it ends, a conjured weapon disappears, or your bond with a magic weapons stops.

Cantrip Upgrade. When you reach 5th level as a Warlock, you gain the Extra Attack feature for the conjured or magic weapon only. With that feature, you can attack twice with the weapon, instead of once, when you take the Attack action on your turn.