I can’t get the super ability.

Yes, it can be challenging to acquire skills, especially for Dwarves and Elves. It all depends on what you prioritize first. Ideally, you should choose heroes who already have one skill related to skill acquisition. This will reduce the chance of getting unnecessary skills, and you should focus on leveling up core skills first, carefully selecting the skills you need. This way, you won't get skills like "Native Lands" or "Storm Wind" early on, especially if you level up an unnecessary skill instead of a core one. Also, certain skills become available only after others; for example, you can't level up "Native Lands" until you've leveled up "Storm Wind."