Ring doesn't give 200 wisdom, it only gives 10.

One of the first dungeons he went to, E rank I'm pretty sure. Had ghost creatures whose corpses combined into stronger creatures when he killed them, forming stronger and stronger creatures until the boss was formed.

I'm pretty sure he hasn't gotten to 2500 yet at this point, but I don't really pay attention to the stats too much. I do know that he became tier 6 a few chapters ago, right after he finished recovering from his seals or whatever breaking. That's also when he unlocked Fire Path, Ice Path, etc. It happened right at the start of the chapter, if I remember correctly.

What are you talking about?

My theory (although it was kinda obvious) is that Elijah cast the curse in order to drive the snake thing away, and using the life force or whatever of innocent people made him lose his class.

It probably doesn't go in hundreds; if it did he'd progress way too fast. I'd bet it's either 300 or 500, more likely the latter since even 300 would just be a chapter away with how fast he's gaining wisdom.

Maybe? The first few words look familiar, but I can't really tell with all of the distortion.

List them then.

The runes are, I would imagine, engraved into the metal, so the runes would become invisible too. He could also easily make it so charms like that one don't work on it. Also, I don't remember any charms to make things transparent besides the ones for humans.

It doesn't make it much better, but to be fair, most purebloods use their wands for literally everything. Punishment still sucks though, because they literally tried to kill people. Plus, even if they can't buy another wand for whatever reason, they can just get a wand from someone else.

More like if you tried to kill a pet with a gun, given how the laws related to muggles are in Magical Britain.

1) He doesn't have any reason to want to become one right now. 2) It takes over a month, and requires a thunderstorm and keeping a mandrake leaf in your mouth for over a month. 3) It's illegal to become one without ministry permission, and he's a minor. 4) McGonagall would almost definitely notice.

How tf would you lock yourself out of your own mind? Also, why are you complaining now, and not during the whole Icy Vault thing, where he was literally using magic to heat up the blood in his body. The whole process of building Occlumensy defenses is "experimenting on yourself with magic" if you think about it, unless every single person decides to use the exact same defense that had been done before, which would make it extremely easy to find weaknesses. Any healing spell is experimenting on yourself, any self-transfiguration, any invisibility or appearance modifying spell, and probably a dozen others can all be considered "experimenting on yourself with magic".

Peeves didn't want to go near the second vault. Either he was scared the second vault would kill him, or Quinn was wrong about the second vault making ghosts afraid because they knew it would kill them.

For example, I feel like you wouldn't have complained so much if he had just spent months studying and practicing blood magic or whatever.

From what I remember of the first time reading this book, the reward isn't really what you get from the vault, it's the magic you need to learn in order to get to the end of the vault.