Tactics for playing as the Dwarves.

After that, you almost always need to develop magic for the dwarf, because 50% of his stats are magical, and if he doesn't have magic, they go to waste. I really enjoyed playing with Chaos; the dwarf deals noticeable damage, but lacks spellcasting for complete satisfaction, in which case you can choose Erling. I haven't tried playing with Light yet, but the dwarf's lack of attack is very noticeable, so a mass punishing strike would be just the thing, against "shooting" races, as I already said, mass evasion.

Light is also good for the dwarf because, in addition to mass acceleration, evasion, stone skin, and punishing strike (and each of these takes half a turn for the hero), there is the "Secrets of Light" skill, which allows spellcasters in the hero's army to spend only half the mana on spells, meaning priests can cast 5! fireballs or 2 fire walls - and that's already useful!
Dwarves have strong warriors, so enhancing them is often more beneficial than simply using destructive spells. Also, don't forget about runes. Mass acceleration is not only 40% more frequent turns, but also 40% more frequent use of runes; mass punishing strike is not just +12 to attack, but when using runes of berserker, dragon form, or battle rage, it's much more...