Discussion about Dungeon (Dark Elves).

It seems to me that half of the new upgrades are useful, while the other half is simply unnecessary. What do you think?

Could you be more specific? Which alt-upgrades are unnecessary?
I can definitely say that Swift Riders are one of them. Their ability can't compete with the ability to ignore armor on the charge.
For the rest of the alt-upgrades, there might be a use for them.