Why is Shyvana such a bad late game champ?
She's not a lane bully like Pantheon or Renekton and isn't an early game pressure jungler like Elise and Lee Sin. I can understand why these champs fall off later but Shyvana offers so little to her team early compared to most of the roster of similar champions that she becomes one of the worst late game teammates because of her low damage, kite-ability, lack of utility and poor tankiness.
or
.
does 


do better and can all outduel her easily. Which means she's actually the one getting counter jungled regardless of her clear speed.
helps against this when combined with
as she gets a huge shield when you activate/proc them at the same time. This can buy her 3-4 seconds of free hits before the enemy can start chunking her, at which point if her team are there she's great, if not she's dead. The same can be said for most engage fighters though.