Well, if we're talking about the highest tier, we'll only have Berserker, and we'll have to endure so much just to learn Eagle Eye from the Witches.
Hit and run, it's really humiliating(((
- Utopia and similar;
- Human Castle or Necropolis, sometimes Mages;
- Spell shop;
- Artifacts with spells;
- Eagle Eye.
Humiliating or not, but how else, if the late game is already drawn out.