*3rd Pov*
{No, I just copied a moment in your memories when Jotaro said 'Yada Yada' and then made you hear it. Also, the quest is complete. You have received your SP, and the mystery thing is... a function. Well, its like an ability, in the form of a function.} explained Lucy
'Care to explain?' questioned Alex
{My pleasure. This function is called 'Power Steal'. I'm sure from the name you have some guesses, so I'll just brief you on them. This lets you steal any power from a person if you maintain direct contact on them for 5 minutes. The other drawback of this power is that you can only steal 1 power from someone, meaning if you chose Eren, you could only take either his Attack titan or his Founder Titan, not both. You would have to wait another 5 minutes to steal something again. This ability steal can be used on anyone and can be used to steal anything on them.
Including OP powers like Plot Armor. If you maintain direct contact with someone for 10 minutes, then you can get the chance to absorb their bloodline, if they have one. This can obviously be used for techniques, like Whis's Ultra Instinct, which is trained. Meaning, you can not only steal someone's bloodline and powers but also their efforts. But only one, as I said before. Any questions?} explained Lucy
'Does the person have to be conscious or unconscious?' questioned Alex
{Either Ither. As long as you can touch the person, you can steal their power. However, what I regard as the most useful advantage of this ability is the fact that you can steal abilities from objects. Imagine there is an object that can grant immortality to someone, but it needs the blood of an extinct race for it to work. You would be able to steal it, as long as you got ahold of it.} explained Lucy
'That would be very useful. I'll keep the ability in the back of my mind. But for now, I should steal Eren's Founding Titan. It not only proves useful to me, but I also save the world. However, I'll have to do some 'minor' adjusting to the world to do it. Now I can say that Eren has the Attack and I have the founder, instead of me actually possessing the sizer, as I like to call it.' thought Alex. Just then, Lucy responded again.
{You got a gift from God, Alex.} explained Lucy
'What is it?' questioned Alex
{The Attack on Titan, chapter 133 manga.} explained Lucy. Knowledge suddenly flowed inside of Alex's brain, listing every single detail of the chapter.
'The Female Titan can steal other titans power by eating their body parts?! No wonder it just had a no ability, it was the fact that the ability was overpowered as fu**! And what was that scene with Eren and Ymir standing next to each other? Does Ymir have a mind-influencing effect on Eren?' questioned Alex. He reviewed the manga again and again until he got his hypotheses on the Royal bloodline, the true form of the titans, and how the titans came to be like this.
(A/N: Wanted to explain a few things before proceeding. First, as I'm writing this, the Manga chapter of Attack on Titan, chapter 133 just came out, and this was the way I was going to introduce my own theory. It's a bit of a stretch, but just bare with me.)
'First, I'll lay down some parts that I found interesting. First, the founder can hear everything from the Subjects of Ymir, regardless if everyone was in the Titans realm, or not. I'll call it the Coordinate for convenience's sake.
The second part is that the Founder can directly disable other titan powers, as the founder itself makes the titan powers. So, Eren could literally just disable Reiner, Peick, and Armin's Titan Shifter powers, but he didn't as he specifically said "I won't take anything from any of you. You are all free". Meaning, He could very well simply disable the titan powers, and at that, completely take them without eating them, gaining their titan shifter powers.
However, even if that doesn't work, he can simply hypnotize all the Titan shifters and force them to come to him, so he can eat them. Either way, he could definitely steal their titan powers with ease. This is probably how his downfall will start, with Armin just nuking his nape, sending him to hell.
The next thing that I need to remember to store in my memory palace is the fact that Titan shifters can take other titan shifter powers, if they eat a part of them. Falco took in some of Zeke's spinal fluid, and turned back into a human, making him gain some memories of Zeke. Or more specifically of the Beast titan.
He was in the clouds, flying, and he could also do it now. That means that either the Beast titan or the Jaw's Titan has shown that they once had wings and that it is now not present. All titan shifters have this ability, so I'm guessing that the Female titan has an increased affinity with this power.
That's off-topic. Moving on, that means that somehow, the titan powers degraded into the 'normal' 15-meter titan's. When Zeke inherited the Beast titan, he gained a few 'privileges' that other beast titan holders didn't gain. What did Zeke have a difference with them? Royal blood, a descendant of Ymir. Well, all subjects of Ymir are, but Zeke has a stronger royal bloodline compared to them.
Anyways, the theory I have is that the Royal blood acts as a stimulant, bringing the Titan powers back to their original slowly. For example, 300 years ago, there could be a normal 17-meter titan, that would be common sense. Then 150 years ago, it would be degraded into 16 meters, and finally 15 meters. What the royal blood does is instead of furthering the dilution, it actually restores some of the titan's original power.
It definitely didn't restore to the previous inheritor, since he didn't even use the beast titan that often, so it could skip multiple grades, possibly hundreds of years. So, if a user of a titan always passed a titan to titan that all have royal blood, they will slowly purify to its original, and if its already at its original, showed by Freida Reiss, then nothing happens. The royal blood is simply a way to purify the titan powers, not upgrade. However, that is just all my theory. There are many holes in this.
Even though the titan powers can slowly become more powerful, as of now, it is lacking extremely, that the user could be killed if doing reckless things. For example, 'Flying Boats'. Titans can't reach or jump that high, so they would become obsolete. However, the Jaw's titan used to have wings. Either that or the beast titan.
So, regardless of the fact that titans nowadays can't beat air artillery, the titan powers were designed to. They were designed to be flawless, be it underground, in the sky, or on land. However, with the dilution, and the evolution of technology, Titan powers will be surpassed if not purified by royal blood. Other than that, small things like the founder don't need to take in all the Eldians to talk to them, she can do it one by one, or in a troupe. As for Eren's Founder-Attack titan fusion, by my estimates, it should be above 600 meters, easily, as in the last panel, there were blimps above Eren, and by the estimates of a few other theories I saw when I was in the first world.
These blimps can only go a maximum height of 2135 meters, with a minimum of 305 meters. By my estimates from the picture, about 12-16 colossal titans could fill the gap, so minus that from a different calculation, and you get around 600+ meters. Other than that, with this, I've got an idea of every titan's powers.
The attack Titan has increased regeneration, plus can transcend time. With that, it is also a kind of all-rounder.
The Jaw Titan can break Titan crystal and is very agile in places like forests.
The beast titan is good at throwing things with its long arms.
The founder can command titans.
The Female has a better affinity with copying other titan powers by eating them, better proficiency with the titan crystal, and is like the attack titan, and all rounder.
The Cart titan has long Stamina, yet short Stamina in the sense that it can last long in its titan form, but is the lowest of the low regarding human form regeneration.
The Colossal Titan is huge with big power.
The war hammer titan can shape anything with its titan crystal.
And finally, the armored titan has its armor. It also has a reasonable talent in hardening. That should wrap up my theory. Hopefully, my future self remembers this. For now, I should get on the walls. Its morning after the Annie attack, after all.'
(A/N: Yes, this is just my theory. As I'm writing this, chapter 133 of the Attack on Titan series is just released, so by the time this is actually published, the manga might be finished, making this theory obsolete. Hopefully, you liked my theory of the royal blood and the titans. I wanted to share more, but then that would make it too long, so I decided to settle it here. I might release more theories I have in the near future. Anyways, peace.)
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{Status}
Name: Alex Uchiha
Age: 16
Bloodline(s): Zero Otsutsuki, Joestar, Pillarmen, God Animal
Stands: Killer Queen, Kraft Work, Star Platinum, Heaven's door, Golden Experience, Hanged Man
Titan(s): Size Titan
Technique(s) : 34 Million
SP: 11,015,000 (11 mil SP)
(Decided to just get rid of the 11.01 mil and just put 11 mil. Its easier to read.)