Heroes 5.5 WarGame Edition - Tactical Edition.

I was browsing the first page and had a question about the Orcs' skill wheel: the Barbarians have their own version of magical schools, their own version of spellcasting, their own version of education, but they don't have their own version of luck – there, in luck, there are "fluctuating mana" and "lucky spellcaster" – does this mean that these skills are now available to the Orc?

And there's also this bug in the game (I think I already asked – I don't remember) again regarding the Orc – if you level up the Orc's education, he gets, like everyone else, an increase in stats (+1 for every second level), but if you then go to the mentor and exchange education for other skills, the bonuses from education don't disappear anywhere (but they should disappear along with the education skill) – the question is, what can be done about this.

Added after 16 minutes

Stunning Attack: The hero's attack stuns the target (it loses up to 50% of its turn)

So, if a Ranger levels up this skill and attacks with a volley of arrows, will all sworn enemies be pushed back 50% on the initiative scale?