u/Constant_Load_8213

I got the Duallison a while ago, but I have never understood how it worked and I want to use it to beat Simon the Divergent Star. I hear that it has some effects that it doesn't tell you about, and what does it mean when it says that it does more damage every base attack hit in a turn? Do I need the combo attack picto? Is there a mechanic for Sciel I don't know about? Could somebody explain the weapon to me? Thanks! Sorry if it's an obvious answer and I'm just being dumb.