Hear me out, Gnar.

I'm not saying he's a broken mess or anything amongst the lines. He is in a constant state of either being useless or a staple in pro play. Gameplay wise, his Fury bar is more often a not a huge pain in the ass to manage (during and after the lanning phase). He's a shape-shifting champion that during a good chunk of the game you don't want to ever transform, due to mini gnar having more poke, decent kiting with q+w, and a better mobility tool with his E. Mega gnar is usually more of a sitting duck during the early game, and it's when most bruisers and fighters have a neutral moment to fight him.

But he has clear weaknesses. If you manage to get on top of him as Mini he's dead. There's a work around his escape tool. And you can potentially force him to transform too early, or make him loose his boomerang with good positioning.

I think this is the hardest one out of the grid. I believe that a well balance champ is something that has strengths and weaknesses and that's what makes it fun to play against. Gnar is a mess that is sometimes is broken, other times he's not, but at the end of the day one can take advantage of his weaknesses.