[quote=@System]
<Snipped quote by Threads of Fate>

Then we need to factor in the limits of that strength.
[/quote]

Right.

[quote=@Disdain]
<Snipped quote by Threads of Fate>

What about a different win condition: convincing the Codex not to try and take over Existence? Are there higher chances of doing that? 
[/quote]

That is infeasible. Nyarlathotep believes more strongly than anything else that she must win for the sake of all life.