He couldn't.
Each attack was accelerated by a myriad of assimilated Martial Art.
Each attack was strengthened by a myriad of assimilated techniques.
Impossible to avoid and impossible to defend against under normal circumstances.
And yet, that was the day that Ieyasu learned the power of employing the right move at the right time.
WHOOSH!
His eyes widened as his attack crashed into an empty image.
BOOOM!!
A thundering Yin-Yang Spear blasted his diaphragm, permeating devastating impacts to the muscle, completely paralyzing it shut.
It was a sensation that every Martial Artist had experienced at least once.
The inability to breathe when one's solar plexus was struck with a heavy impact.
For a moment, he was paralyzed.
An opportunity Rui was not kind enough to miss. He surged forward with a full-powered blow.
