With the situation bound to become more severe, all the aforementioned issues will be magnified indefinitely, to the extent that they can become a drag on progress at any moment.
Let's assume that Qian Cangyi continually uses his skills to kill Mo Ran. The outcome is this: He'd have to face the reinforced difficulty of Sunset Ancient Castle, alone.
Could he survive in the end? Maybe.
However, the chances are too slim, so slim that they can almost be neglected.
If Shadow Play is a deep thinker, then even if he's blind, he could still provide massive assistance to the team. At least when facing games like drumming and flower passing, he could offer valuable advice.
If Lan Xing has enough courage to take responsibility for his actions, his performance so far suggests he can hold his own. However, when facing death, courage often hides.
If only...
There weren't that many ifs, Qian Cangyi knew that clear enough. Thus, he had to try and find a solution from another angle.