Skills and Super Ability of the Orcs.

KillAndAction

Anyway, I won't try to convince you.
I almost always like to use siege engines with a triple ballista and fire arrows. Especially if the hero is Tilseck. The damage is always excellent, especially when luck kicks in.
But if I don't get a siege engine by level 15, I don't take any later on. And I develop the hero in Retribution.

Regarding the Executioners. The activation of their "Cleaver" ability depends on the soldier's luck.

I hadn't paid attention to the amount of Knowledge, but when the ability to reduce the cost of spells is developed, they cost about 3-5 mana (I don't remember exactly), and some are even free. And the Orc always has at least 10 Knowledge by level 20. You can always find artifacts. Spells are used almost infinitely.

And why separate reinforcements from spells?
I always use reinforcements, but that doesn't stop me from using spells.

Of course, the actual morale only increases by +5, but thanks to the fact that the Orc's morale can be +10, the Necromancer won't lower it into the negative, and Battle Frenzy will always be relevant.