That's right. Now. Say my name.
In the earlier seasons of Breaking Bad, Walt’s list of accomplishments in the meth game were impressive (destroying Tuco’s HQ, highest purity in the region, taking out Gus Fring), but if you came across him in the street you would think he was just another guy. No one would suspect that he was “the great Heisenberg” simply by looking at him. This is because his main goal back then was making money no matter what the cost was, and he didn’t care about his physical appearance.
But ever since Walt took out Gus and essentially became the “king” of the Southwest region, he has become more and more concerned with his status and reputation. He isn’t content with just being the richest man in the meth game; he has to be the most powerful and intimidating man as well. That is the point of this scene. He is trying to get Declan to associate Walter White with the badass legend Heisenberg relying solely on intimidation tactics; he doesn’t even have to mention the name Heisenberg for Declan to realize who he is dealing with.
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