The Reality Marble is effective, sure, and it is an important part of Archer's concept. However, since this is [i]Archer[/i]'s powers we're talking about and this isn't a strictly Fate-based game (where Archer's reality marble would be actually necessary to succeed), you don't [i]need[/i] a trump card to steamroll the opposition.

There's always a Noble Phantasm that's useful for a certain situation, and, Ilya being Archer, has largely-unlimited access to [i]a majority of them.[/i] The line between "I think Ilya can use this" and "I don't think Ilya can use this" will be almost entirely arbitrary (as it really feels like it is in kaleid liner PRISMA, to be honest). Archer is basically Batman with [i]magic[/i] hammerspace instead of [i]plot[/i] hammerspace. That they won't be able to pull out the Bat-Davy Crockett or the Bat-Omega Force is [i]not[/i] a great restriction.

I know you feel like you'll be able to keep yourself from engagin in powerwanking, but it's almost impossible to avoid that with a character like [i]Archer[/i]. Being able to pull out (nearly) any weapon you want at will, with the only restriction being a nebulous amount of prana that won't be near-depleted until you think you can get away with it.

I don't want to sound like an ass, but this character is gonna be a [i]huge[/i] strain on the trust of anyone RPing with you. Archer!Ilya is a character with nearly-unlimited potential, and is going to force the general power level of the RP to extracosmic levels wherever she goes.


I mean, I know she's not as powerful as Gilgamesh, but that's not a big difference since she's still got most of his powers, an easy way to regain prana, and poorly-defined powers that will generally result in you being able to pull out a big "I Win" button whenever you want.

It really feels like you're trying to sneak in Gilgamesh under a pretense of "no guys this version is totally weaker".