This flavor text on changes pretty much shows how biased you are on champion viability

With beefed-up health pools across the jungle and this little mummy dealing area-effect % health damage, Amumu's going to be a big beneficiary of the 2015 preseason jungle changes. We're taking preemptive measures to pull his clear speeds back in line, but we still expect him to be one of the stronger champions heading into this preseason.

Yes, we can't allow amumu to even contest the top picks, so the slightest fear of that will be met with preemptive nerfs, because Lee Sin going out of flavor would be devastating for the upcoming LCS start.

Also, once again you don't buff Lissandra's mana regen, even with the mana formula changing. Good job.