that umbrella power is unclear, before it break easily, even befire that it was easy handling mythic beasts, now its strong again?

It's all unclear, his power and abilities constantly fluctuate between strong and weak. His power seems to be based on inaction, he's mediocre till someone he knows get's hurt.

It’s been shown throughout the two seasons that he avoids fighting at all cost, he just doesn’t want to do it because he wants to reach immortality kinda similar to Han Li but like Han Li they attract trouble like moth to a flame. He is not mediocre he just doesn’t want to fight. That’s why I love when they provoke him because his avatar state like actives.

The best part was when they did all the fighting

at the end is he asking for bai xiaochun to have children?