You can see normally in darkness, both magical and nonmagical, to a distance of 120 feet.
When you attack with your pact weapon, you can use your Charisma modifier, instead of Strength or Dexterity, for the attack and damage rolls.
Battleaxe, Longsword, or Warhammer- 1d8 Versatile- 1d10, instead of Strength or Dexterity, for the attack and damage rolls.