Discussion of third-tier monsters.

Of course. You separate 1 Djinn from the main stack, and that's it.

I tried it... 5 Djinns against 5 Ogre Mages (5 of each spawn in a week)
Djinns: 4-1
Ogre Mages: 1-1-1-1-1

Hmm... when applying Magic Shackles to the Djinns, 30 health was removed. I added "Energy Drain"... it removed 60.

So, I understand that you need to separate 1 Djinn so that the stack of Ogres can be hypnotized with the Song of Peace? (This is, of course, if there is only 1 stack of Ogres).
In general, in the first round, the Ogre Mages cast "Energy Drain" and "Magic Shackles" on 4 Djinns, and that was it...

By the way, if there are fewer than 4 Djinns in the stack, they won't be able to cast Illusion (but I guess everyone knows that).

I did all this on version 3.55.

So, I understand that if there are 50 Djinns against 50 Ogres, the outcome will change...? After all, Magic Shackles will still remove 60 health.

Added after 9 minutes
In general, yes, the damage from Magic Shackles depends on the amount of mana used by the opponent, that is, if Ice Dart costs 3 mana, the damage will always be 30.
“Illusion” also costs 3 mana, so the damage is the same...