For me Maokai And Gragas need this small nerfs!!
For Maokai he need his Twisted Advance to not transforms him untargetable and make your skills goes off and and your damage never hit!!! I mean he is a tank with damage reduction ability for 12 seconds he dont need to be untargetable too!!
And for Gragas he need nerfs on his CDs and Mana costs and they need to nerf the duration of W the Damage buff duration i mean gragas use W and then after 5 seconds he still have the damage buff...not that need a nerf! Special when the CD on rank 5 is 4 seconds....so he pretty much can always have his W on!! for me he need to have the damage buff for 2 seconds so to force gragas to do his E-W combo but if he fail to not still have his W damage buff!!