Tactics for playing as the Dwarves.

How can archers defeat bears when they are protected, as they usually are? I carefully reviewed the posts, and only Chaos and Light are being discussed, but what about the other schools of magic? Are they completely useless for a Dwarf? I think Phantom is more useful than Meteor Shower or Shock, because these spells won't be particularly effective for a Dwarf, and they are also quite expensive. Having two squads instead of one is more useful than having one squad, even with a punishing strike and a dragon rune applied to it. If you don't get Blind, you'll get something else, like Berserk. But in the campaign, I always found Blind.