How could you have 7 people healing ?. Who is doing the fighting ?. :? :-?
One melee hero doing all the killing in the entire game (becoming very strong...), with all other party members on healing duty (wearing as much +Int and +mana gear as you can find). As you come across new recruitable characters you just swap the stronger characters in for the weakest in your party. This also works with one melee + 1-3 other ranged offensive characters (each a specialized archer or mage)... and for tougher battles just swap everyone but the melee character to healing duty. Oh, and having at least one character capable of casting Triple Strike (CM lvl22) makes the killing go much faster later in the game.
There are other things I could say, but again I don't want to ruin your first journey through Ehb.
One melee hero doing all the killing in the entire game (becoming very strong...), with all other party members on healing duty (wearing as much +Int and +mana gear as you can find). As you come across new recruitable characters you just swap the stronger characters in for the weakest in your party. This also works with one melee + 1-3 other ranged offensive characters (each a specialized archer or mage)... and for tougher battles just swap everyone but the melee character to healing duty. Oh, and having at least one character capable of casting Triple Strike (CM lvl22) makes the killing go much faster later in the game.
There are other things I could say, but again I don't want to ruin your first journey through Ehb.