Allow me to elaborate.

By spending three feats, you can gain 21 maneuvers, 12 readied, and 7 stances by level 20. (Swordsage has 25/12/6, Warblade has 13/7/4).
By spending two feats, you can bind any three vestiges with full binding level, by level 20. (A binder can bind 4 exactly at level 20).


With these two things alone you can rival, if not best, two tier 3 classes in their own areas of competence. With Transmogrify, you can also change your features every day- imagine being a swordsage that can completely swap out all of their maneuvers each day and then also decide they might like to be an incarnate or a warlock at the same time.

Yes, not all feats are this bad, but there are a significant number that are. Bishop of the Far Realms, Scion of the Aberrant Mark, Voidspawn, Mad Disciple, Soul of the Far Realms, Twisted Mind, Breachspawn, Twisted Form... you get significant portions of class features, and you can gain multiple of these, and with this class you can get enough aberrant feats to get all of them at significant power and then swap them out as you please. It's too much.

And if you limited it to the not broken ones? It'd probably drop down to Fighter level of competence.