1. Only for spellcasters, and even then for casters with other significant stuff like druids there is a single prc that advances all their nice stuff
2. Ah, thank you for the clarification.
3. as dragons sexing other races produce half-dragons and draconic creatures and whatnot, not new fully fledged dragons.
4. You are trying to munchkin no less than three max-level casting progressions along god and dragon and royalty and other stuff.
1. Which one? Abolisher, Arcane Hierophant, Daggerspell Shaper, Dispassionate Watcher of Chronepsis, Lion of Talisid, Planar Shepard or Moonspeaker Druid? I think you mean the Hierophant since its dual casting and Wild Shape.
2. It'd be a clarification if you know that's how all 3.0 Classes state their advancement, 3.5 used it as well but in general the text was changed to include the words "arcane", "divine" or "existing", and probably another half dozen things that I take for granted and don't feel like I needed to mention.
3. Fun fact, two pure-blood Elves get together and have a baby, the baby decides to take a level in Troll and loses all of it's Elfish heritage and becomes a Troll. The Troll screws a Dragon and has a child who chooses to take levels in Barghest losing all of it's Half-Troll/Half-Dragon heritage and becomes a Barghest.
4. Actually munchkin is cheating, like using incorrect sources, banning materials that's been in use for several years for not agreeing with a newly invented house rule built on false premises, and telling people to stop making accurate points about their imbalances/ambiguity/inaccuracies in one thread by using my apparently ending participation in another as leverage. Optimization is built on min/maxing, like in the case of Nuclear Dragon. Is losing 7th level Maneuvers, the +4 bonus that applies to virtually everything when overheating, and that +7 Constitution Bonus worth the cost of keeping within theme? I thought it was because I achieved the near result using a different combination and I assign value to everyone's time/effort, including my own.
I'm pointing out problems as I find them. Your formatting doesn't help much.
It's all there per MM1's style of stateblocks except all sources for every bonus and every Class Feature is included in one page. If you find it confusing I will try to match your style.
Annnd I updated Bahamut again. Like Steel Arcanist it's probably your very own creations of God & Real Pilot, but I got mixed up and I think my examples might have used Divine Pilot. Eh, not sure. You should probably read this other unrelated entry else where I'll try to link later. If you have any questions about ambiguity or if I have a system for the numbers produced, just dig through this discussion here and I'll try to post an answer once every few weeks or so to the best that I'm able to provided I don't feel like the question is rude or the person asking is being unruly.