Don’t know if you ever finished.... but...
***spoilers****
He ends up imprisoning TuoBa Jun for a good bit, and almost successfully takes over the throne from his nephew. But WeiYang and Tuoba Jun end up playing him (because of how much trust they have in each other) and it ends up in a big fight (to the death). TBJ our fights him but as he goes to kill TBY, Li ChangRu steps in at the last second and blocks the sword for him. And then (I think, but it’s been a scone since I watched) he ends up killing himself by pushing himself onto the same sword