Which faction poses the greatest challenge for the Dwarves?

They have good defense, good stats, and a lot of hit points.
+ Runes don't depend on the opponent. In any case, their racial ability will significantly strengthen the dwarf army.

There are many advantages to this...HOWEVER, dwarves are not very good at attacking (maybe someone has better attack stats), but dwarves' attack is not great, especially at the beginning... the result is a quick defeat or very cautious gameplay)). I only like Karli and Ibba.