So are they just giving Katarina the Riven treatment?
Katarina Base HP reduced to 510 from 560 HP growth per level increased to 83 from 80 Base HP regen per second reduced to .9 from 1.5748 ^taken from S@20
Isn't that exactly like what they did with Riven to "nerf" her? Except Riven was supposed to rely on her shield to not take damage.