Based on this post on tumblr, it is possible that the sphinx is part of BERG's fraction and that BERG's one of the "others" the sphinx mentioned. The fact they are both connected to riddles is just a bonus. I recommend reading the post itself. I dont want to copy it all here since I didn't write it.
Hijack called her "hag", and Davy mentioned there being a witch in the school. Zarei also seemed to recognize her, mentioning something about it being "impossible" that she was still there. she's also too weird looking to be human.
S/he claims to have been abducted by aliens. Maybe that was just entering his/her spirit room thingy. (I forget the terminology)The weird brown eyes could be explained as 'changing to look like his/her spirit'.And s/he knows there's a word before Activity in Activity Club.
That's why weirdness like the hitball game is brushed off without comment and why seemingly random students sometimes say very suspicious things. It's also why Suzy can't find out anything about the Activity Club, as about half of her schoolmates are deliberately thwarting her.
- Unless she can clone herself, this is Jossed, as in the Ghost Train chapter Johnny's gang, R.J. included, passes by Suzy's house while she's inside talking to her flunkies.
- And yet he doesn't know who Batman is. Perhaps he just picked up modern language from previous occupants.
- There are plenty of people who don't know who Batman is, surprisingly enough. He might have lived a sheltered live and picked up slang from kids walking into the corner store.
- Could be a medium like Isaac, judging by their sparkling green mohawk briefly revealed by a speeding car.
- RJ cannot see supernatural creatures, although that does not prove they don't have something supernatural going on
- Jossed. They were able to pass through the barrier.
In the scene right before Max bats the... well, the bat, we see a quick set of pictures showing the other characters preparing to step in- Mr. Spender is holding onto his sunglasses, with what may be energy swirling towards it or out of it. It would also explain why it is that he's always wearing them. Also, the current page header on the Paranatural website has all the tools together- Max's bat, Ed's brush, Isabel's book, and Mr. Spender's glasses on the top.
Alternatively, his tool could be in one or both of his eyes, or be his eyes themselves.
- Or each of the lenses is a tool with a different spirit in each.
- The one-spirit-per-lens theory is looking more likely; Spender worries about being near a yellow spirit for the sake of his mental stability. If being connected to one spirit takes a mental toll, imagine being connected to two.
- I'm guessing this has something to do with the whole light-and-dark theme he has going on (His panel in chapter 1, page 60, and also the lighting in his room). Furthermore, he reacted almost violently when Isabel tried to hand him another tool. Having two spirits is bad enough — imagine THREE.
- Or each of the lenses is a tool with a different spirit in each.
- Confirmed here: Mr. Spender's sunglasses are a tool with the power to control light. His ability to control shadow comes not from his tool, but from the spirit possessing him, a very dangerous and evil shadow thing.
I base this purely on the fact that when Max was pestering him in chapter 3, he used the famous Hulk quote "you wouldn't like me when I'm angry". There has got to be some significance there, not to mention he'd just finished explaining how he could "completely destroy" Ed and Isabel together. And Word of God has confirmed that Isaac has a rather sparky temper.
- Or because Mr. Spender doesn't want Isaac's violent and unruly spirit to hear the information. He can't exactly throw him away like he did with Max's tool.
- Judging by Isaac's aborted response to Max asking about this subject, it seems likely he's done something to earn the mistrust of the other members.
- Don't forget Doorman's "redemption you seek".
- Plenty of hints are in Doorman's scene.
As theorized in this comment.
If mediums get more powerful as their spirit recovers and Issac can't really do too much with his powers, then it's only a matter of time.
- But Isaac can do plenty with his powers.
- He can't make wide scale storms.
- Confirmed, Eightfold is a paper spider-like spirit.
- No, wait: Johnny gets the pencil, Suzy gets the plunger, and the audience all get trolled.
- He saw the lightning Isaac made, but the flashback from his point of view makes it very clear he 'didn't' see the spirit getting attacked. Background of the last panel here.
- Well, it looks like at least Johnny was confirmed. He's now a medium for Forge.
The physical manifestation of his spirit is glowy eyes. His sunglasses are not his tool and are instead used hide his weird eyes from others.
- Jossed. His sunglasses are confirmed to be his tool.
- Though his eyes really can glow, as with every spectral who's communing with their spirit.
- Double-Jossed? While Mr. Spender does have weird eyes, they're the complete opposite of glowy. In fact, they're pitch black.
Once is a funny event. Twice is foreshadowing.
His healing power has consistent limitations, as well. Both times he appeared to have fatal injuries, he lay still, possibly unconscious, for several seconds to a minute, before claiming to have been fine all along, and laying still isn't really normal behavior for Johnny. So it presumably takes a minute to work.
- Arguably the first time was because of the Doctopi which promptly attached to his head and started eating his pain. Still an interesting theory, just thought I'd mention that. Then again, the Doctopi did hop off him fairly quickly, and if he had sustained serious scooter-based head trauma, presumably he would start hurting again after the flying cephalopod was done with him. What an odd sentence.
- In Ch. 5 Isabel warns that Doctopi just eat pain, they don't actually heal.
- Here, in the background, although it could just be a funny background event.
Montezeusma went to Mayview to meet Doorman for the same unknown reason as Forge but was defeated by Mr. Spender (Here the bunny spirit mentions a storm god on his list of arrogant dead). After the battle he possessed Isaac.When Isaac awoke his powers, he made a huge mess (This is why he was worried about Max awakening here and was what he tried to say here), and for this reason he is excluded in the Activity Club.This theory also explains how Isaac met Doorman, it was because Montezeusma already knew him and was working on the same secret agenda before being forced to possess Isaac.
- See the last line here and the first line after. By "succeeded", Doorman is referring to Forge successfully trespassing into Mayview.
- In panel 8 here, he says "my master does not fear broken gods", alluding to a conflict between Forge and the spirit inhabiting Max.
- Unlikely. Forge dragged scrap metal to the barrier to make a door so Doorman could let him in. When he lost the scrap metal Forge asked what other way he could get in. Forge didn't know a way through the barrier other then with the help of Doorman, so why would Doorman be expecting Forge.
The problem with the theory is the reveal of the barrier around Mayview; if Max's dad was already a spectral, he wouldn't have been able to get through the barrier without using the Ghost Train. It's still possible he's an unawakened spectral, however.
- Jossed. It's a parasol.
- This would make sense, considering the fact that Isaac already feels betrayed by his friends and loathes Spender. He already resents the Consortium and the other characters currently presented as "good", so all he really needs is someone who will give him the information he wants and he will join up with them.
First of all, comparing their head shape and arm size here◊, we can see they are a bit similar body-wise. It's been shown both are a bit scatterbrained, and Boss leader seems to know a lot more about Max then she lets on. Contributing to this...
- Also, Max's mom's death was apparently a grisly one and Boss Leader is wrapped in bandages all the time.
- Jossed. Boss Leader is eventually revealed to be someone else.
- Adding on to this, Max's Mom seems to have been a blacksmith, much like a certain spirit. Furthermore, on this page, she appears to have scales or something on her hand. Could she have been a medium for Forge?
- As for being the one Hijack is trying to get to, there was that exchange at the beginning of Chapter 5 between Mr. Garcia and Hijack (possessing the weird dog). He's been front and center in several panels pertaining to Hijack, as well. Something's Up With This Guy
- This also explains how he defeated the strongest spirit despite his rather average skills. The spirit possessing him is a living shadow, and Lucifer's power would have given him a natural advantage.
- Being able to create barriers similar to the one around Mayview.
- Being able to change the color of spectral energy.
- The ability to take away the powers of a spectral (Using tools, seeing spirits, etc)
- The ability to outright destroy other spirits.
- This would make sense, as Mediums grow more and more like their possessor as time passes. That means that originally, B.L. was normal, and began having a sleeping disorder, that eventually evolved into a full blown coma. It does make sense that a dream spirit would always be sleeping, after all.
- Confirmed, both being in a coma and said coma being a result of Medium exposure.
- Agent Day's powers somehow affected her memories (and maybe her eyesight? or was she always blind? I dunno, I'm digressing), or
- Agent Day had her memories erased by someone (possibly Boss Leader, unless when talking to Max she meant she can only make people forget the current dreams they're in)
- Max joked about Spender erasing people's memories with bright light. Perhaps he really can do that, for all we know.
- So clearly Scrapdragon isnt the thing possessing Max. Whatever it is, it wants to stay hidden from the Activity Consortium since it hasnt done anything when spectrals are around, but thats kind of irrelevant.
- Scrapdragon is this spirits pet or something of that nature. Otherwise, wouldnt the two spirit have like fought over Max, one wanting the upper hand? But they havent fought at all. So yeah, somehow Scrapdragon and the thing possessing Max are linked.
- In the last panel of this strip Isabel, while imagining the Activity Club congratulating her, also imagines a dark hand that looks a lot like Dimitri's giving her a thumbs up. (Right above Mr. Spender) And on this page he "accidentally" keeps screwing up the wires every time Suzy's recording device starts picking up Activity Club stuff.
- In addition, there are dark body parts when Isaac remembers back to fighting earlier monsters. Here
- There's also the time where he seems to activate some sort of power to allow him to tank Hijeff's throw during the hitball match, and then states that none of the others can take a hit like he can without getting hurt badly.
- Post-hitball game, Dimitri and Isabel also share a dramatic, history-laden look that implies something deep they cannot talk about and makes them both sad
- Mediums take on physical characteristics of the spirit possessing them. Since Spender is possessed by a powerful shadow spirit, it would obviously be able to see perfectly in poor lighting, as that would be its best environment. Upon being possessed, Spender became able to see in the dark, regardless of how poor the lighting happens to be. Hence him wearing his sunglasses literally all the time, and having absolutely no problems with vision. And being completely okay with wearing sunglasses while driving his students around at night, instead of just pushing them up on his head or something that would maintain contact with Lucifer, but not impair his vision. They don't impair his vision in the slightest.
- Max's mother worked a lot with metal from what we could see in Max's flashback to her of her in the garage.
- On the page where Lisa blackmails Suzy, Lisa says "Miss" and Suzy flinches, before Lisa continues with "Suzy", and she relaxes, implying she may have been expecting another name.
- This is probably a very lose theory, but it's worth a shot. The first piece of evidence I have is here. Now as we all know, Water Is Blue. So the fly dying in the cup of water translates to its Battle Aura being blue. I have a few other pieces as well, such as the reason why Eightfold has red energy is because she died in a fire. Her location of death was probably a library or near one which was probably her home as well. Some dumb kids probably did it as a prank. Muse probably died in the wild and Scrapdragon might have been a snake caught in a junkyard. This could also explain King C's weather powers, who might've been a a cub who drowned à la The Lion King (1994).
- Also might explain Suzy's over-the-top dislike for the Activity club.
- Implied, if this page where the ghost of a recently deceased fly about to be eaten by a fish spirit indicates.
- Almost definitely Jossed. There's no evidence that humans can reincarnate or turn into spirits. Also, Scrapdragon is canonically a spirit. Scrapdragon's real form is likely just a much smaller snake, as grudge forms are seemingly never too far-off from their original state. Compare the bat spirits normal form to its grudge form. Therefore, it is logical to assume that Scrapdragon's normal form is simply a smaller and less scary version of itself.