History Headscratchers / Supernatural

** Don't think of it as a SuperWeight hierarchy; picture it as more of an ElementalRockPaperScissors scenario. You can shoot a leviathan, drop a car on top of it, cut its head off, use magic on it, etc., but none of that will kill it. However, it will still yield a physical effect -- it'll still have an entry wound from the bullet, it'll still be ground into paste by the car, it'll still be rendered non-functional until it can reattach its head, and it'll still be paralyzed by the spell. Other than [[WeaksauceWeakness borax]] and the [[AchillesHeel holy bone]], the leviathans' primary weakness actually is their physicality -- hence why Bobby was able to push Dick Roman around in episode 20. Bobby existed on a spiritual plane, and as such, Roman could not detect him or fight back. With the angels, the leviathans have the same ability as Eve in that they can sever an angel's connection to Heaven, which renders the angel helpless against the leviathan's onslaught. Leviathans and Eve have that ability because they are older than angels, but just because they have a neat trick that allows them to overcome beings who rely on a physical vessel and a power source doesn't necessarily mean that they have a blanket immunity against every other form of offense. Otherwise, the bullets/car/machete would just bounce off of the leviathan's body, and the spell wouldn't affect them. As for the Enochian banishing sigil, that doesn't kill angels because it wasn't designed to. It was designed to banish them. There may or may not be an Enochian spell that allows a person to kill an angel; we don't know (but if there were, it would probably be kept top-secret upstairs). Michael's resistance to holy fire stems from the fact that he is an immensely powerful archangel, which are much stronger than regular angels simply by nature, so holy fire isn't as effective on them as it is on generic angels. Additionally, the ability to block an angel's power doesn't contradict the previously-established abilities of the leviathans in the least, and it only ''seems'' like it was thrown in at the last minute because up until that point, we had never seen a leviathan come into contact with an angel and had no reason to think one way or the other on whether or not they could block an angel's powers.

** Because Chuck lied about how hard it would be to make new Archangels, just like he lied about Michael being too crazy to let out of the cage. And just like how he left Gabriel in the hands of Asmodeus. Those rare elements he'd supposedly need to make them? Only existed in the first place because he created them. He's GOD, there are no established limits on his ability to create. As for the duplicates, they're likely copied from the originals whenever Chuck wants to play with a new world. So in the beginning there were one set, the ones from the show world, and then Chuck just copied and pasted whenever he got a new idea.

* I know this is really late, but how can there be multiple versions of the Archangels across the Multiverse? Like the other Primordials, they're ''older'' than the universe, so they should be older than the formation of the Multiverse, right? And didn't [[spoiler:Chuck]] say that making Archangels is really time-consuming and difficult? How did he make so many Michaels, Lucifers, Raphaels, and Gabriels?

** Out of universe so that they could do what they did in the finale and possibly do sequel series. In universe it's probably supposed to be that Jack didn't want to interfere at all so he put everything on Earth back exactly as it was before, the good and the bad.

* [[spoiler:Why didn't Jack get rid of all the monsters before leaving?]]

* OG Death looked outright surprised at the moment Dean killed him, so it seems he hadn't at all expected it - which would also make sense, since he also told Dean he would reap God one day. It sounds as if there are multiple "death books", but the most probably deaths seem to be mentioned repeatedly, with less probable deaths as outliers (based on Season 14, when Billie - "New Death" - told Dean that "all his books had changed to the same death, except for one.") Additionally, based on the same comments by Billie, these books aren't carved in stone, but can change and update if circumstances change. That is to say, there genuinely may not have been a written outcome as of Season 5 that Dean Winchester would kill Death in Season 10. It would have been massively unlikely (not least of all because no one expected the show to go on that long). At the time Death spoke to Dean in Season 5, they were at the precipice of a theoretically-Apocalyptic battle. Even if Death was aware that both Sam and Dean would survive that and that Dean would eventually acquire the Mark of Cain, he **surely** never anticipated that Dean would somehow overpower a curse specifically designed for brother-killing, and manage to kill him instead.

* Season 12 in general, most notably the episode "Lily Sunder Has Some Regrets", make it very clear that nephilim are considered to be a very serious and dangerous threat to the cosmos, such that even a rumor of one of them being conceived is enough to justify an angelic kill squad being dispatched to Earth. With that in mind, has there been any in-universe explanation for why Jane, the nephilim from "Clip Show", was basically ignored by Heaven until Castile and Metatron needed her?