it needs talking about... riven
all you have to do is lower her ratios and riven would at least require skill. i get that she's a mechanically difficult champ IN THEORY, but the difficulty should come from having to nail combos that could change on the fly, not being able to completely miss every single combo but still output stupid damage and get a massive shield. all you would have to do is scale back the AD ratios on her abilities and she'd fit in the meta much better. the problem is that she really doesnt have a weak point in her game, she just starts strong and gets stronger. it's partly because you only have to build flat AD and she gets both crazy damage and a huge shield.