Marvel and DC comics crossover? That's a bit much. Better off going with one and then the other.

39 chapters spent on an escape. What a disappointment. You been dragging your story, using the System is bad choice as a support system for any story. After all, you spent 39 chapters on level up powers, but overall, it's lacking and taking too long.

So, she found Dexter before his encounter with the Red Ring. I felt sorry, for that poor cat. As I am a cat person.

Biggest mistake to allow him to spill the beans about Izuku having that Quirk, and the fact that All Might is not asking why. Makes it even worse.

Why did you allow your character to spill the beans that he knew how Izuku got his Quirk.

A super weapon, with the force of a nuke with no radiation is not a bad thing. If anything, it can reduce the death rate among the androids. Find a target that is too dangerous, take it out from orbit.

Great film, but it would not have been the culture I would have wanted to be reborn into. Of all the Ancient Greek City-States, the Spartan was the worse of the worse, they were focus on military only, nothing else, and that didn't stop Alexander the Great.

While Spartan Army is an advance fighting force for the classical era, it's also the most brutal for that era. Their training was brutal since childhood, but that was basically all it was. Anything not perfect was killed, kids with any deform features were automatically killed. A Spartan graduating into adulthood had to track down and murder a slave. The primary reason why they were successful in 300 was their location of fighting, as their enemy was forced to go down a tight path, which eventually they loss as the enemy was able to get around this defense. If a classical army was needed, then the Spartans would not be my first choice. There were the armies of Ancient China of their various kingdoms, the Roman Empire, and many others that would have been a better choice.

Adding to much can kill a story, basically that suit given by Mark to Tony

So, jumping between dimensions... I'm not sure what to feel about this plot idea. It seems corny to say the least, the point I want to skip at lot of stuff, which is actually a bad thing for author, as readers' losing interest is not a good thing.

He is full of himself. Even if he's not a believer, the way he acted lacks empathy because he has the power.

Okay from what I am reading, the structure of the story is well made. Some people write chapters for their stories, but never truly put in the effort into the storyline structure. Basically... "He wrote this." Author spoke, instead of you including background information of what your characters are doing or their reactions to certain actions or speech. I view that as a sign of a good writer with a promising writing style.

The chapters seem to have half the effort put into them. Which is confusing and causes a desire to skip, which is not a good thing.