(A note: I am not being condescending; I merely don't know what you do or don't know, and am trying to help guide you around)
There is CO, and there is TO. Character Optimization. Theoretical Optimization.
CO is taking a concept, and then optimizing it for playable function. Casters normally can't maintain decent damage. Mailman applies CO to direct damage. Nuker applies CO to area damage. Gnowhere Gnome applies CO to enchantment & illusion.
CO characters can still be taken into 90% of game groups who know what they are doing even a little bit.
TO is making a character decimate any semblance of expected performance. Chuck'E'Cheese, Pun-Pun, Cheater of Mystra & Twice Betrayer of Shar, Hulking Hurler, Etc. This stuff shatters any campaign it touches that isn't specifically built for this kind of shenanigans‎.
Min/Max 3.x forum is for CO work, whether asking for help on how to make a character better, or for posting some neat build that makes your Ranger able to hold its own in a fullcaster party. TO in this sub-board might get toasted a bit. Not outright flamed, but there might be a bit of displeasure. See above comments.
Take your build, copy it, then post it in "You Break It, You Buy It" sub-board. That's where the TO community is, and that's where this stuff is expected.
Also, to clarify, the reason this is TO:
1) This
wins Rocket Tag
Hard. A "Recursive Twin", as you call it, can force through many, many Save-or-Lose spells. Meaning that if the target isn't immune to any and every status effect that can be produced by a level 4 or less spell, you win. Also, with this trick, you can already make sure you win initiative every time, and aren't ever caught flat-footed by combining already well-known tricks with some of the same things you use to always hit.
2) The use of "dirty tricks".
Firstly,
no removal of prestige class prereqs after qualification, no early qualification for prestige classes
You are using Anyspell as your Arcane Casting circumvention, which is early entry, because you are avoiding taking actual levels you otherwise are meant to. That is what early entry
is.
You are using a spell, Substitute Domain, to qualify for your PrC. Even if you re-cast it constantly, you are still gaining your qualification from a spell, not a permanent effect. (A) This is early entry again, because without this, you would need to take another level in a different class (Cleric or Contemplative), and you are finding an end-around for that. (B) While
you might not
intend for your prereq to be removed, it very well can be removed by others through many different, easily accessible, means.
Secondly, this is on par with the Twice-Betrayer of Shar. The only difference being that TBoS emphasizes defense to the point of being immune to everything, whereas this emphasizes being able to hit any target with any effect, and nearly guarantee success. This comes primarily for the "Recursive Twin" trick that you keep using, which is, beyond a shadow of a doubt, a "Dirty Trick".
Comparing to the Mailman build for example, this does not require the Faerun-specific Incantatrix, so it may be playable in more campaigns.
Mailman can use stuff from Dragon or UA to help, but is not reliant on it. This build needs at least Dragon material to be okay'ed to be usable. I've seen Incantatrix approved way more often than Dragon material. Heck, I played along side an Incantatrix in a game where none of the Dragon material, nor the Paragon classes were allowed. YMMV, but to say that this is any more acceptable at a play table than the Mailman due to source material is a pretty big assumption.