Tactics for playing as the Dwarves.

I didn't specify why, but it seems I need to. Thanks to this ability, the hero will definitely move before the enemy hero (if the enemy hero doesn't have "sharp mind") and likely before most of the troops. If the hero is Helmar, then he can simultaneously speed up the troops and inflict a punishing strike on them, which is already a good guarantee of victory. Or apply mass evasion to save himself from archers. Or apply stone skin in a fight against demons (the sooner, the better). Or just throw some fireball or shock earth at the enemy. In general, a thousand and one uses and very great benefit, IMHO.