Well, to be honest, yes... I take assassins because at the beginning, I don't notice that I have 500 mana, and there's really no need to hide; it's better to just shoot them down. A little later, yes, but at the beginning...

Well, generally speaking, at the very beginning of the game, if you manage to gather a decent number of archers and the mines aren't guarded by shooting neutrals, you can use archers; sometimes I do that. But later, I definitely upgrade to griffins.

The question remains: why don't other races even dream of these things? Why are they forced to act in the old way?
Night Stalkers. They hit hard, a little harder than witches shoot.

Witches usually shoot at the second half of the field, which means the damage will be halved, while Night Stalkers will always deal full damage.

Invisibility lasts exactly one turn, no matter how you move the Night Stalkers, so you need to have a very bad memory not to know where they are.
And have you seen how they (Night Stalkers) walk? To reach the end of the field, you need to admire this graceful but slow gait.

Well, if the choice of upgrade depends on how the unit moves... I don't even know what to say... I know that invisibility lasts for a turn, but if the opponent can't reach them, won't they be able to dispel the invisibility?

And how, for example, can you use the witches' sabbath with Erin? Will the Night Stalkers throw their whip?... And the spells cast by the whip? You hit a bunch of cyclops, cast berserk, who will be the nearest random target? Mass spells perfectly break invisibility.

Erin isn't the only hero in the game. I never rely on her ability. The ability of the witches themselves is sometimes annoying, but the Night Stalkers also have this drawback. Besides, the chance of casting berserk is 33 percent. And mass spells... Who will cast them? Either another hero with the "Expert" skill, or a mage. Well, and a dwarf. That's it. Not to mention that you won't be able to cast dark spells.