Your favorite unit...

Magnus
you probably said something too quickly without thinking.
regarding the Furies: bears with the Rune of Speed will crush the Furies.
Regarding the Defenders: I'm telling you, if there are 350 Defenders in a unit, they are almost invulnerable; the defense is cumulative!!!!! You can gather such an army very quickly. And the point is that there is a Rune of Speed!!
Regarding the bear riders: who will allow these riders to get close? Well, one of them will strike once, and then the entire army of dwarves will beat him up.
The strength of the dwarves (I'll call them that) lies in their defense.
You seem to underestimate the dwarves.

Added 1 minute ago
yes, regarding the most Russian race +1

I agree that they are overpowered, but they become defenseless without runes, and especially their defense can be ignored by mages, using spells. Therefore, before the dwarves reach the unit, they need to be destroyed by archers. A huge problem is the Than and Jarl with their area-of-effect attack and initiative and speed, so they need to be eliminated, then the archers, fast units, and summon a Phoenix, preferably by a Necromancer, considering their gigantic magic reserve. for example, at level 20, let the magic be 15
Phoenix
HP - 750
MinDamage = 150
MaxDamage = 150
Attack = 30
Defence = 30
Initiative = 15
Speed= 7
Dwarves cannot afford this; you need a Necromancer/Mage Castle.
And I hate these dwarves after completing the mixed campaign.