[He knew it. For once he's glad for his past experience dealing with Luffy. It allowed him to predict that. As for the latter, he sighs a moment.]

I don't know what that's supposed to mean.
[Ideally it'd just mean he's the former king of a country oddly named "Conquerors," but that'd just be too easy, wouldn't it. No, this is some sort of conquering king, big and boastful, exactly the way Doflamingo was. Surely, someone like this is his natural enemy. Maybe if he boasted about what he did to the last conqueror he met, this guy would back off.

But he didn't feel like Doflamingo, he felt like Luffy. Which of course presents its own unique problems, and a distinct urge to distance himself, but...]
... Where I'm from, there's something called "Conqueror's Haki." Your aura is something similar to that, I think.