Natsu will get his ass whooped next chapter. Yeah, it's awesome that he now knows true fear and true anger, but he has yet to learn about a real defeat. I want all of fairy tail to fall this arc as it would only make the story better. Natsu was beat by Zancrow who wasn't even trying. Even if this anger power-up makes Natsu strong enough to fight Zancrow, we still don't know Zancrows full power.