Torchbearer is one of my favorite characters, I just love the concept of the guy. I was maxing him out on the ice side, and found it generally quite weak now that the generals and citidal upgrades are in the game.
He can't cast enough ice spells to control the field like he used to be able to. The ice-side is now a one shot glass cannon until he hits higher levels. He basically can cast one spell, and that's it in the early game. Compare this to everyone else who can dominate by just standing around hitting things. Torchbearer in ice-mode doesn't have that dominating ability until later levels when his spells are more devistating, he has better mana-regen items, and a stronger frost aura.
I'll keep at it and see if I can nail down exactly what he needs. It may just be a little more mana regen for his first 6 levels or so...