Con for glasscannon at least an 8 or higher, when I build a fighter I build STR, SPD, CON, PER, DEX,
but i havent ever used GC on anything but the tank because all the others have such low con anyways.
I'm currently trying Bairdotr as a Glass Cannon crossbow user (I found a legendary crossbow), and she's pretty much slaughtering everyone.
You have 4 toons in the party right? Okay that to me isnt good, here is why....the same amount of loot spread over 4 toons makes 4 weaker toons rather than 3 stronger ones.
Quality over quantity.
That's basically nonsense. The game is not so sparse on loot that you'll be crippling yourself by taking 4 people instead of 3 - especially if they fulfill different roles. When it comes to mages, that's even less of an issue because their gear tends to matter less.