@Meddler kog maw shouldnt have been part of the adc rework because hes not an adc. he is a mage...
I have had fun playing kog maw as an adc and he can be great in that role, but I think you should have had him in the mage update not the adc update. His ult is a great spell for a mage. His w is decent for an adc, but its not that great. And his passive is complete crap for an adc. The rest of his kit needs to stop being weirdly marksmanesque and revolve around his ability to seige and poke with ap items.
I think azir kog would/could be a great matchup in the lcs. I think that kog maw in a duo lane is always overshadowed by the supports you find down there.
Also, buff draven. Reduce cooldown and mana cost on e so I can play more aggressively to get kills before my first back. I appreciate -20 mana on my ulti. But if you -20 mana on my e that would be better. Also, let axes spin down one by one in same way ashe stacks fall off one by one. 2 spinning -> 1 spinning -> no axes spinning. Both of these changes will help dravens mana, as I play him.
among a couple others I'm sure