Added.
Added.
You cannot since the flaw is 1st level.
As I've mentioned, there's a serious paucity of epic material, so I'm open to considering non-1st-party. Epic spellcasting will be an option, but I will be seriously nerfing some options, such as collaborative casting DC reductions.
Added.
Accepted.
No restrictions on wealth usage. If you want to drop money on epic items that's your prerogative.
No language restrictions: I expect a high degree of independence and problem-solving ability from 20th-level characters, so a language gap shouldn't be an issue. Speaking Chondathan natively rather than some trade language is fine. That said, if your character, a Mulan human, has lived on the surface of Faerun, they're probably getting Common as an automatic language.
Fixed.
I've generally been OK with DMM. Worse comes to worst you can always DMM spells to the party's benefit rather than druidzillaing yourself if you are consistently overdoing them. As is usually the case with tier 1 casters, it's as much up to the player as it is to the DM to not play their caster as OP as they can possibly be.
Separate, explicitly even under a maximalist transparency interpretation in XPH.