Yang Yi did have some ideas for dealing with Nicholas.
To vie for the inheritance left behind after Deyo's death, mere ambition clearly wasn't enough; real strength was necessary. The Organization of Water currently had considerable strength, but taking on Nicholas wouldn't be easy.
However, if the hardest part was done by others, and he simply followed to reap the benefits, then that would be a different story, wouldn't it?
Thus, Yang Yi's trump card was a secret—a secret that Jethro had once told him, but which now hardly anyone cared about.
One very important reason Deyo had gone to war with Big Ivan was that Nicholas had secretly made a move against Ivan.
Who was Ivan, you ask? He was Big Ivan's own nephew, his only blood relative, and if nothing unexpected happened, Ivan would be Big Ivan's successor.