Although I agree, I think this Dany moment was less of an awe-inspiring triumph and more of a fear-inspiring promise. I'm beginning to think that Dany is going to ultimately become the main villain before all of this is over. I mean, now she's talking about slaughtering kingdoms. Those are not so much the words of a conqueror as they are of a tyrant-in-the-making. It's a bit more obvious in the books as Dany is responsible for some very morally questionable acts. But I think her speech in this current episode is placing her on that same trajectory. In other words, she sort of herself IS the Song of Ice and Fire, as her soul grows colder and colder from the inferno of her will. Just a theory at this point, but I think SHE may prove the largest threat to Westeros in the wars to come...