Weapon Binder (5e Feat)
From D&D Wiki
Prerequisites: Bond weapon (like a pact weapon for warlock or bond weapon of an eldritch knight)
You spend so much time with your bond weapon that it becomes a part of you that is becomes effortless to summon it to yourself. When you take this feat you become able to summon a second bound weapon but it takes up concentration if you are a warlock or you use your bonus action as a fighter to summon both your bond weapons to yourself but you can not take the extra attack action the turn you do this.