I have only played Dark Souls 2 for about 30 hours but I'm currently on Play Through 2 and doing it with ease using heavy gear and 2 upgraded Broadswords. I'm using 2 because the durability on it isn't the best but it is cheap to buy and upgrade. I use 1 sword for trash and the other for bosses most of the time. The Black Dragon Sword or Varangian Sword would probably be better so keep that In mind. This is a great build for beginners.
The Black Dragon Sword