Brawlers have to much HP

So Brawlers got small nerf last patch Bonus Health: 300/700/1200 ⇒ 300/600/1000 which really hasn't done anything at 4 they get 100 less hp that is almost same as if there was no nerf at all but since 9.16 there are 6 Brawlers in game which is really easy to get as most of them are 1-3 cost units except Cho'gath which cost 4 and its still easy to get at least 1 star one quite early so at lvl 6 you can have a massive wall of hp 6 units with hp around 2000-3000 each which is insane considering both red buff and morello got nerfed and deals the dmg over 10 seconds there is very little we can do to get through that since it will deal only about 500-600 dmg to them over 10 seconds. Right now building 6 brawlers is viable strategy to make sure you end up top 3 pretty much every single game as the dmg of the individual units is nowhere near low, also you can throw in Kassadin and Cho'gath + Rek'Sai will do true dmg thanks to Void, throw in 2 more sorc and all your units deal 40% extra dmg with their ultimates. There is really no downside to this comb deals decent dmg and can't really be killed easily if at all.

My suggestions:

1. The most obvious one nerf the Brawlers synergy to something like ⇒ 250/500/750 or even 200/400/600

2. Make Morello and Red Buff scale better against units with huge HP bars ⇒ If the unit has over 2k hp deals 40% dmg instead of 20% dmg over 10 seconds, this makes it viable vs brawlers but won't make the item op by itself vs normal units

3. Revert the nerfs to Cho'gath and make him 5 cost unit ⇒ 6 Brawlers won't be so extremely easy to build and it will be also nerf to Void/Sorcs which is still one of the best comps there is atm, I mean why not? His ultimate has one of the biggest radiuses in game and its CC on top of that and even after his nerfs he is still one of the best 4 cost units in game