Look at what they did to Rek'Sai. She had a kit that LCS players and high elo were constantly abusing, so they fucking destroyed everything in her kit. Her sustain, her tankiness, her damage, her CC, her mobility, and her utility. Now Rek'Sai can actually be good again because of these fucking changes. She's still Rek'Sai, she just has a kit that's better for her health now. See? THIS is how you rework a champion. If you want an even better example, look at Warwick. That's a REAL fucking update. Not removals in disguise.