So, here's the thing. If I understand the physics engine correctly, 30% attack power isn't actually that. And this misleads many players. These 30% are just one of the four components of the total damage!

When 15% defense reduces the ENTIRE total damage to a unit!

This is what I meant in those posts that Hacker deleted. As far as I remember, 30% offense is an addition to the base damage, which, as a result, may add significantly less to the total damage. I haven't tested it myself yet, but it turns out that with high enemy defense, the addition could be more than 30%. I need to check it on Troglodytes.:)

And the monsters that attack in the treasure room really depend on the secondary skills, as well as the parameters. For example, I attacked in Conflux and in Utopias with the artifact helmet +6 and without it. Indeed, the monsters sometimes behave differently.