I just started D&D 5E through Adventurers League. I'm only at level 2 but see at level 3 I'll be picking a Pact Boon, one of which is Pact of the Blade.
Pact of the Blade states:
You can use your action to create a pact weapon in your empty hand. You can choose the form that this melee weapon takes each time you create it (see chapter 5 for weapon options). You are proficient with it while you wield it. This weapon counts as magical for the purpose of overcoming resistance and immunity to nonmagical attacks and damage
When I started out the DM told me to pick two Simple Weapons to start with. Now I have a Mace and a Sickle.
What is the benefits of Pact of the Blade instead of just using the "normal" weapons available to a Warlock (assuming I want to use Melee weapons at all)?