@chaincomplex-
So, the basics of my character use binding and incarnum. Thanks to bloodline use, it allows me to multiclass the two without any support. Consideirng that going above 20 results in that(the no support thing) being a drawback, I'd like to request the following, despite it being homebrew. If you don't want to use it, that's fine, and if you want more time to consider it, that's also fine since it would only come in once the group hit epic level anyway.
Midnight Occultist Prestige Class
If it helps any, my vestiges I'd be running would be Ashardalon, Ipos, Chupoclops and Focalor, not counting any Bind Additional Vestige feats taken later.