Larian Studios Forums Divinity: Original Sin 2 Divinity - Original Sin 2 - General Unable too progress, at houndmaster done it all

do i need really too finish the game 1 ranger and 1 tank 1 summoner and 1 rogue? is this like the meta seems like.. eventho my rogue is useless dies easily but does alot of dmg but not enough from the trade they take.