So can somebody tell me, what does Ming Cult Heaven & Earth Great Shift actually do, to an extend that it capable to transform Zhang Wuji into one of the strongest fighter in his era?
Because I think this Heaven & Earth doesn't has any form of External martial art,
Buckshot Roulette namely punching and kicking techniques in it. But only a series of breathing Exercises like Yoga training.
If it's truly do like that, then how this Heaven & Earth Great Shift give more benefit to Zhang Wuji in his fighting ability than his previous 9 Yang Inner Martial art?