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It still seems that the racial ability of Demons and its method of gaining benefits are two mutually exclusive things. After all, unlike morality, luck cannot be obtained without an attack or counterattack. This means that Demons need to move forward almost always, one way or another. Unless it's against an Orc, in which case you don't need to rush – it will come to you.
On the other hand, summoning reinforcements is about prolonging the battle, not intensifying it. It's about applying pressure with a huge amount of units, which, in theory, can be summoned. That is, it's more of a defensive tactic.
But defense doesn't suit the Demons.
Or maybe I just can't defend properly with them. My skills are lacking.
Moreover, summoners disappear if the main unit dies, so using the Demon's ability towards the end of the battle, as a trump card that turns the tide, also seems rather dubious.
On the other hand, summoning reinforcements is about prolonging the battle, not intensifying it. It's about applying pressure with a huge amount of units, which, in theory, can be summoned. That is, it's more of a defensive tactic.
But defense doesn't suit the Demons.
Or maybe I just can't defend properly with them. My skills are lacking.
Moreover, summoners disappear if the main unit dies, so using the Demon's ability towards the end of the battle, as a trump card that turns the tide, also seems rather dubious.

Барон "Vampires"
Отдай свои прошлые сны,
В сомненьях себя обрети,
В бешеном танце душа кружится!
Не думай, что будет потом,
Здесь и сейчас мы живем,
Стань хоть на миг сам собой, слышишь!