Eldritch Mastery

At 2nd level, your patron has invested in you more power, which manifests in improvements to your Eldritch Powers. You gain the benefit corresponding to the power you chose:

Eldritch Blade. You gain proficency in medium armor. Your Eldritch Blade can take the form of any melee weapon and once per turn you can deal additional force damage equal to half your warlock level when you attack with it. You are proficent in your Eldritch Blade.

If your weapon lacks the heavy property, you are able to maneuver it to deflect all manner of physical and magical attacks. As long as you aren't wielding a shield and wielding your blade you gain a +1 to AC.

Eldritch Bolt. On a hit with your Eldritch Bolt, you add your charisma modifier to the damage it deals on a hit.

Eldritch Orb. When a creature succeeds on a saving throw against your cantrips or Eldritch Power, the creature takes half the damage (if any) but suffers no additional effects. Additionally, each time you cast Eldritch Orb you choose one the following damage types and gain the corresponding benefit.