I got a 20 warrior but i dont think im doing good with it... i think i rushed the map a lot. Just finished Hirge quest in pit and reached the speaked shadow maggot lvl 21 but i couldnt beat it (close call)... my phone gets stuck a lot, probably could have killed it.
Spirit Cleaver has both Banishing and Holy, and Shadows are both Outsiders and Undead, and it does Spirit damage which Shadows are pretty much uniquely vulnerable to. Spirit Breaker is a good Hirge weapon for the same reason: Holy, Outsider, Spirit.
It's good to get a stack of Potions of Lesser Restoration, you can give a couple of thwacks and get 50% of your HP back. You can grind the up via Apples or Nivarian Town Hall quests. Hirge with Intervention should keep her up. A point of Magical Training can let you cast Circle of Restoration too.