Which champs used to be popular who aren't anymore?

List goes on

There are 2 champs that instantly comes to mind: Elise and Kha'Zix. They were amazing back then and was present in almost every game because of how good they were. Thanks to the nerfs, Elise is one of the worst junglers in the game and Kha'Zix is just meh. They are still playable, but harder to win with now.

When I first began playing, literally about every game was Lux mid, and since I started playing blind pick first it was often Lux vs Lux mid. When Lux's focused shifted more as being seen as a Support and there being "better" choices for mid I always find that odd. Lux has the zoning tools to handle a short lane. Heheh. Short bus.