An old mammoth is walking across a field, slowly and majestically. Then six or seven young elephants run up, knock him down, kick him, and run away. The old mammoth gets up with difficulty and says:
- Ugh, those damn skins are a pain!
But seriously, I can only repeat what I wrote a little above – we don't know anything yet. And it's not a fact that the Dwarves will go on a rampage; maybe they will be trampled, like the mammoth in the joke.
As for rune magic and the anti-Dwarf ability, there will definitely be some anti-rune spells, but it will hardly be possible to use these runes often. How often do you make artifacts for wizards? Only when you're rushing or when everything is already built and you have tons of resources. And even then, you don't always have enough resources for artifacts with multiple properties. Now imagine that you have to spend these resources on each battle; you'll go bankrupt right away! No, unless they make these runes cheap as dirt, they can only be used on the easiest difficulty level