Can you gut Predator and Poison once and for all?
I'm not going to lie, I'm sick of losing to this same composition all the time. Nothing works against it, whatever I build the predator buff just negates everything. The poison effect applies almost instantly thanks to Kog'mav and Mundo. Too easy to build, too easy to level up those champions and barely anything works against it. Not to mention that it's likely the only build, which benefits from all 4 types of maps equally. And poison is just... no comment. It shuts down a lot of compositions.
Possible nerf suggestion: Just make Predator require ALL 4 Predators, so that you can't instantly go for leveling up that Kog'maw to lv3
As for poison: just decrease the rate of the mana cost increase to 25%. It's enough to shut down spell spammers but at the same time it won't hurt those that much, who don't rely on spell spamming. By the way: I find it really ridiculous that poison was meant to disable spell spammers and enable other composition, but one of the poison champions is a spell spammer.