71 Talent!

Why was I able to use the "Rageful Tiger Fist" Technique?

Why was I able to use Qi and Internal Energy?

Is it because of my training these past few days? Is it because I ceased all thought and focused on attacking?

No.

As a matter of fact, that is completely wrong. When I used the "Rageful Tiger Fist", I was thinking. I was thinking a lot.

I was thinking about Sun, about the Daggers in Hayo's hand, about what I should do, about which weapon I should use.

I had to think and estimate Sun's maximum speed when using the Wind Tiger's Footwork Technique, I had to estimate the assassin's reach, as well as Sun's, and added to that, I had to get my speed just right, to make sure that I wasn't in reach before Sun's attack hit. 

I had to think and study Hayo's body to notice the exact moment where his focus shifted to behind him, so that I could speed up and disarm him.