Welcome!
[quote=Arlai BF]What kind of "power level" can we expect from the participants of the war?[/quote]
I already mentioned that Einherjar are able to use Yggrasil Seeds(or they wouldn't be called that, duh...), that alone puts them above pretty much any other mage except a few. That said, the powerlevel is going to be high but ultimately it depends on how the sheet looks, I do consider putting something similiar to Ai Space in place to allow people go all cray-cray without sinking the entire island(or worse). That said, one of the stats(Don't worry, there are no fancy maths, they just serve as a rough guideline) determines your room for growth, so there is also going to be development in terms of power if you want to, just watch out to not get killed ;). Also while this is indeed PvP I provide characters of my own(I don't wanna call them NPC because I am controlling them and don't really plan to take on a character "myself"... :L) that serve as potential targets so no one has to drop out too early...then again they might just end up wiping the floor with yer sorry asses.

[quote=Arlai BF]Secondly, how is the war getting organised? Is there are a group that selects the participants of the war, can anyone join, or are they randomly selected?[/quote]
There is an Overseer(name subject to change) who also participates in the war with a few special rules applied to him/her. The survivor becomes the new Overseer. Over the entire magic community(which is mostly broken up into different clans bitching at each other, those clans don't have to be organized like a single family) there are 4 extraordinary magicians making sure things don't get out of hand too much. Nearly anyone can join if they want to/know about it, though joining without a Yggdrasil Seed is like jumping from a plane without a parachute :3. Well, you have to get your hands on a Yggdrasil Seed, being in some big-shot clan or similiar that will be no problem because you pretty much got raised for the reason of participating. Of course, there are exceptions (and I expect the exception will become the norm <<) and the current Overseer is actually [i]kind enough[/i] that he scouted for potential Einherjar. Also, to get back at the powerlevel, you don't have to be a great magician to be an Einherjar, all you need is a huge reserve of Mana which is mostly, but not entirely, decided by RNGesus as soon as you got born.

[quote=Arlai BF]Since this is a rp focused on PvP battles is there any way to do "hidden actions" like preparing a hidden trap, and then only telling the GM about it until its triggered to surprise your enemies? [/quote]
You would still write that "hidden action" so that everyone would read it. And (under ideal circumstances) people would still fall for it. Here comes the term "Metagaming" into play, which basically means that the person who plays a character uses information his character has not access to for his character. As in, I, Skyswimsky, read that you laid a trap while my character, Bob, who is also more muscle than brain has no clue about the trap. Still, I would never trigger the trap because I read where it is/how to trigger it/etc. I would simply avoid the situation with Bob. That's an example for metagamin and is often a thing that turns into quarrels. Metagaming is something that should be avoided because it is toxic for the roleplay. Now to answer your question, to be honest, I was still thinking about such things(more in regards to the character sheet) and will mention it again once I put the OOC up.

[quote=GuyYouWishYouDidntKnow]
Don't worry, we can solve that by everybody just apping overpowered characters!
[/quote]
You don't happen to be KSPAM, do you :P?

[quote=Smooth]
I've never heard of Fortissimo tbh, I'll look it up sometime later. I myself have no problem whatsoever with overpowered characters considering what we're basing this off.
[/quote]
Well I already said something about power-levels and stuff but didn't gave any solid guideline yet. The powerlevel will be high but part of Odin-tier is out of the question, duh. Oh, and no Immortality(your character could become immortal over the RP though*snickers*) but it is possible to get to the age of around 250 while having the body of an 20-30 years old thanks to magic...of course, nearly no one gets there because people die when they are killed(and the general magic community is like a bunch of hysteric woman gapping at each other). When I judge a CS I also ask myself "How can I screw this character up <3?" and take that answer into consideration.