Thoughts and Blitz ballance
After reading the sticky at the top I am going to say Riot needs to reevaluate how they decide if a champion is overpowered. I don't know 100% for sure but I am guessing the pros play on a closed network on a private server that is only handling the requests of 11 computers. This makes a big difference in response times from the server. Using the pro standard leaves a lot of champions in a position where in the majority of games they are broken (I do offer Riot an invitation to provide stats to prove me wrong). Yes I acknowledge there is a vast spread when it comes to player skill but when certain champions have to be banned or they break non pro play I would say there is a problem.
This will bring me to Blitz. I've been playing this game sense season 1. Blitz is one of the only champions I consistently lose to. He has an excessive amount of CC that is complemented by his amazing AP/AD ratio and his high tank.
So past scrapping the champion what to do about it? First off you could cut Blitz's AP/AD ratios in half and you would still have a strong champion because 3 of his 4 abilities have some sort of control factor to them. His fourth ability can make him hard to catch. So I don't think it is out of the realm of reason to cut his ratios. If you want to keep the ratios cut the distance his Q goes by about 33%. With as tanky as he is you should make him really commit to that grab. Ok so you don't like option 1 or 2 that's fine here is option 3) drop his growth stats. Currently without items he maxes out at 2198hp reduce this to ~1700 and give him a new passive so he doesn't get a huge second health bar when he is low on hp.
In all my options I believe the passive needs to be removed from his ult (maybe rework the ult a bit to compensate for this).
I would love to hear constructive talk but lets face it this is the internet so I won't hold my breath.