Why bring Riven and Zed back? The game was so much better without 'em. Both take ZERO skill to play.
I've literally had a Riven or Zed in almost every single game since they were brought back. It is hilarious seeing every single fanboy think he's actually BoxBox because he instalocks that Riven. FFS please give riven a mana cost. Change Zed's energy to mana so he can't just mindlessly spam shurikens and spam shadow ninjas and spins without having to worry about running out of resources.
I really can't think of two other champs in the game that are easier to play than these braindead wackjob champs. They are only played by LGBT nation-ites and people afflicted by SAN-- severely atrocious neckbeards.