If I wrote this before then disregard. I don’t remember.
Team comp I’m referring to: Tank, bruiser, bruiser, ranged assassin, healer
2 bruisers allow for two solo laners and to run a 1-3-1 comp. Admittedly this isn’t an advantage over 1-4 comps that double soak, but I just wrote this to show map comp still works. If it’s a 2 lane map, then the 2nd bruiser can go with the 4 man.
2 bruisers allow for a bulkier frontline, and I’d argue outscales the traditional extra ranged assassin on the other team. Bruisers have respectable damage as a whole, can self-sustain depending on the bruiser, and can basically do more late game. An issue would be getting poked early on in a teamfight and early game, but comps can strategize right (lucio, rehgar, other hero speed ups) to mitigate this weakness. Waveclear may or may not be okay depending on the bruisers.
A big weakness of the double bruiser comp would be if the single ranged assassin dies, they’re sunk. I’d say the extra bruiser can still do respectable damage and can still perform well in the teamfight assuming decent focus fire.
Example of a double bruiser teamcomp: Johanna, Imperius, Xul, Rehgar, Raynor
Raynor’s extra long attack range and self-sufficient heal means he will be safer than normal marksmen. Johanna + raynor + xul can keep up waveclear even on a three lane map. Rehgar does respectable damage too. Even if Raynor somehow dies, Rehgar can BL to create a winnable 4v5. Imperius + johanna stun means their front line is gonna die. Xul will also be powerful with BL. Blinds will counter this team, but since johanna is taken, the only common picks left is Mei, and Cassia. Players here will argue artanis would be drafted too, but ehhh.
The trick to pulling off this teamcomp is selecting Johanna + Xul first. The enemy team won’t suspect a double bruiser comp unless both bruisers lock in early. Since the bruiser is already picked, the enemy would pick their ranged assassin first, which may or may not be Cassia. Even if rehgar is stolen (he’s not really banned in my games), you still have lucio to speed up your team. Thrall can be used instead of Imperius to be the 2nd bruiser. Earthquake would accomplish the same thing by slowing enemies instead of speeding your team up. Plus, Thrall is self-sufficient, has cc like Imperius, and would be a fine substitute.
If the enemy doesn’t take % damage, or even if they did, there’s too many bulky targets to be a threat. Tychus is too low range and would be blown up when now there’s 2 bruisers + a tank in the front lines. Raynor can play safe and still attack the tychus. If rehgar used, there’s a 4th possible diver to finish him off while even totem can be used to slow his escape if he doesn’t dash away. If Johanna is banned by the enemies, they used one of their bans, and you still have Mei to secure the last tank that can blind. Perfect.
Illidian may be a threat since your team is AA heavy, but he’s gonna get blown up, or he just sucks anyway so he won’t be picked. Same with Genji against a beefy team.