Dwarfs turned away from spellcraft long ago. As a result of this, there are no Dwarf Wizards, but their race has become highly resistant to magic.

Accordingly, when a Dwarf army attempts to dispel, the innate magic resistance of the Dwarfs grants the army a +2 bonus to all dispel attempts. Note that if the Dwarfs are fighting alongside a Wizard (either in the same army, or as part of an allied force) for whatever reason, this bonus is lost – the Wizard's presence disrupts the Dwarfs' natural resistance.