@Cucoo
Personally, I consider Boundary Manipulation and controlling the basis of the universe without limit to be
almost one and the same, only they both use different methods. Alvis uses the universe's very energy to warp and create as he sees fit, while Boundary manipulation alters the very boundaries of the universe, the things that hold it together. If you want a reason why, look at this page.
http://powerlisting.wikia.com/wiki/Boundary_ManipulationAt full power and with enough experience, Takoizu or Yukari would be able to create universes with ease. As it states in the wiki,
"The user can manipulate all boundaries - material, spiritual, conceptual, metaphysical, and so on. Since everything is physically and existentially defined by boundaries, the possibilities offered are limitless - for limits themselves are nothing more than the boundary Possible/Impossible, and the user can manipulate even that. Simply put, there is ultimately nothing the user cannot achieve."Here's a couple highlights of the power:
Deification (Man/God) - They would be able to turn people into actual gods.
Logic Manipulation (Possible/Impossible) - They can make the impossible, possible with nothing but a snap of their fingers.
Omnificence and Nonexistence (Creation/Erasure) - Self explanatory.
Omnipotence (Limited/Unlimited and Relative/Absolute) - Self explanatory.
Omnipresence (Nowhere/Everywhere) - Self explanatory.
Omniscience (Knowledge/Ignorance) - Self explanatory.
Wound/Death Transferal (Self/Others) - if they get injured, they can simply transfer wounds to others, or vice versa.
Infinite Supply (Zero/Infinity) - With this, they could technically give themselves infinite power and/or energy, or at least boosted power and energy. They could even drain someone else of their energy.
Truth Manipulation (Truth/Lies) - With this, all they need to do is say anything and it will happen.
Reversed Effect (Defeat/Victory) - Them losing could mean victory. Don't ask how this works, I'm not going to even try to explain it. I have no idea how it works. :p
Power Immunity (Susceptible/Immune) - They can make themselves immune to anything.
Power Negation (Omnipotence/Impotence) - They can literally strip people of their power.
Meta Probability Manipulation (Possible/Certain) - With this, if there's a possibility that something will happen, it will happen.
Physical Godhood (Wave/Particle) - Yukari actually has this one as a spellcard. :p This is what it can do:
http://powerlisting.wikia.com/wiki/Physical_GodhoodMeta Powers (Meta/Hypo) -
"Metaphysical powers that are beyond reality and/or operate "from the outside". These powers are somewhat alien, and their nature / origin / inner workings are essentially beyond understanding. As such, these powers are essentially invincible, as other characters cannot comprehend and have no grasp on them." -
http://powerlisting.wikia.com/wiki/Category:Meta_PowersMeta Ability Creation and Power Erasure (Able/Unable) - give people powers, or take their power away.
Causality Manipulation (Cause/Effect) - "♪ If you want the universe to end, clap your hands. ♪"
Time Manipulation (Past/Present/Future) - Alter time as they see fit. By extention, they could also do the next boundary.
Time Manipulation (Eternity/Instant) - give them virtually unlimited time to do something, or have their actions play out in an instant.
And the list goes on...Simply put, it is the power to do anything and everything that comes to the imagination, even surpassing their limitations. Of course, I have not even begun to scratch the surface of what it's capable of in the RP, and I intend not to. It really would be unfair for everyone if I did that, so I'm holding back a lot of what it's truly capable of.
Funny thing is, there are some people that can stop them. Take Shikieiki for instance. She is said to be more powerful than Reimu, Yukari, and Yuyuko combined. I assume Shikieiki has some kind of absolute power negation, allowing her to judge people without having to worry about them fighting her. This is just speculation though. There's also reacting faster than they can, preventing them from altering boundaries. Of course, you would have to kill, or interrupt them in an instant, or else you would not win.