Kog's Ult 'buff' ended up being a nerf
To both AP and AD Kog.
Minor ding to AP Kog (weakened his full burst combo significantly, slightly better poke).
Major ding to AD Kog (plenty of things that would have been finished off escape now with a sliver of HP left).
This is why Kog's player-base keeps calling on Riot to dialog with us. Many of the changes to him since the rework (and then the revert) haven't really been thought through. The changes to the base damage (and then the added attack speed) on his W during the rework spring to mind right away.
I'm not mad about this. Kog has one of the lowest play rates in the game. Both Riot and most players are stuck on the idea that he has to be terrible early and mid with a monstrous late game whilst back in reality Kog having a very powerful mid-game his team can bank on is what made Juggermaw comps work in the first place. There are very, very few players who understand Kog and what makes Kog tick. And if someone doesn't understand what makes Kog work then how are they going to be able to change him in a meaningful way?
So.
Instead of doing your own thing with Kog? Please. Drop by one of these Kog topics and talk with us. Or even make one about him yourself, Riot. Let the long time Kog players give their input one what you have in mind. Listen to our ideas, we have plenty. And maybe, working together, we can make Kog'Maw great again.