a lot of the items are op. a tweaked version dead mans plate could probably fit into the game with less efford, but there is no way typhoon claws would make sense keeping. considering how they overly synergize with a handful of champions. vayne and kallista are absolutely ridiculous with them.
the tank item to share damage would be a horrible idea aswell. it would make champions that are intended to be squishy suddenly tanks for a couple seconds, only taking 40% damage.
but the brawlers themselves would make a nice addition to the game. it adds a whole new layer of strategy to summoners rift.
for example you dont always want to upgrade your minions, if you want the enemy minions to push in so you can farm more easily and the opponent loses cs. at the same time, its a gamble. if the enemy team pulls a decent play, they would be able to push much easier off this advantage.
imo it needs the addition of the rule, that you cant upgrade brawlers while youre dead. and they may have to find a way to tie the currency into the game where they dont risk making the game too snowbally.
but i like the concept. and i want it to stay.
maybe they can make the brawlers grant a little more gold than normal minions in return. so a team thats ahead wont totally overrun a team thats behind.
or every brawler killed takes a second off the kraken counter. so a team thats behind in krakens doesnt get too far behind. a small advantage should remain, but the main advantage should come from spending the currency on the right minions at the right time.