Both of the things mentioned above (teleportation networks and infinite mana loops) also means that they don’t need to worry about logistics. ” They are (the DL’s army, at least) also seemingly masters of PR, information warfare, spying, and basically everything else with the exception of things like cooking and maybe art (humans are better there due to having a longer cultural history with those).

Speaking of her, she’s on the monster’s side and is outright supportive of people and monsters simply coming back to life as undead, which makes things rather complicated as she runs the only afterlife known to exist in MGE, which is the one where everybody goes to. Basically, monsters run the afterlife and can come back from death as undead at their leisure, after that they can come and go from the afterlife to the living world and vice-versa with ease.

Then it comes to the powers all monsters have, the list is immense and keeps growing with every new book (seriously, it feels like monsters get half a dozen new powers every new release), so I will just leave this post I made some time ago, though it’s now outdated.

tl;dr: Human warfare in MGE is high magic and seemingly some anime bullshit, monster warfare is D&D munchkin nonsense, coupled with anime and shounen bullshit, coupled with fifty different decks stacked making their “common” abilities almost an isekai protagonist power list. Because KC clearly couldn’t care less about any sort of power balance.

Monsters aren’t particularly overconfident, tbh. Despite their basic units in Side 2 having a kit that can be divided in “instant win technique” and “set up for an instant win technique”, they still make sure to use their abilities to great extent and have several different fail safes to guarantee victory. They purposely designed their attacks to have synergy with all other troops and even their own techniques. They use mind reading and their power to manipulate attention to control the flow of battle, destroy the enemies ability to coordinate, communicate and execute plans, induce mistakes and other such things. Strategists generally scout out areas and gauge the enemy and use techniques to direct the entire battlefield.

They also seem to have quite a few military divisions dedicated to the undead, which is crazy because as far as we know the undead are completely immortal and have no weaknesses, as all the ones they had were removed by Hel

Similarly, all units have several of their attacks designed in a way where dodging or blocking it is in itself a trigger for another instant win technique. This is due to the fact that most monsters would rather end the fight as soon as possible, so their entire move set and combat skills are specialized in using a dozen different ways to instantly win the fight or directing combat to do so.

They aren’t even negligent with training, having frequent training exercises and exchanges with other monster nations to make sure their combat doctrine and soldiers are always as effective as possible in real battles.

They have an overwhelming advantage over humans (like, holy shit do they have an advantage) but rather than grow complacent and overconfident, their desire to get husbands/protect their homeland/family/values means that they use said advantage dating in your 40s to crush the enemy in the most efficient way possible (that their values allow).

Unfortunately, the Heroes would be also an easy prey, falling to the temptations of monsters. This preventing any progress what the Order has been trying to succeed in a conflict against the Monster Girls.

Inside a Demon Realm your average monster is much stronger to a ludicrous degree

All of that is them fighting outside of a Demon Realm i.e. them fighting the most disadvantageous environment possible. Basically, inside a Demon Realm monsters are in god-mode. Their already overwhelming physical abilities vastly increase, they have unlimited mana and thus can spam their most powerful magic as much as they want, the environment makes all attacks (conventional or magical) into non-lethal versions so they can’t even be harmed, and so on and so forth. It would take a lot of text to list all their powers and advantages.