Crusader
Must keep Devoted Spirit.
Can swap any other available school for any school except Desert Wind and Iron Heart.

Swordsage
Must keep Desert Wind.
Can swap any other available school for any school except Devoted Spirit and Iron Heart.

Warblade
Must keep Iron Heart.
Can swap any other available school for any school except Devoted Spirit and Desert Wind.

~*~*~

This is something I'm considering using in game. Why can't a Crusader of Olidammara use Shadow Hand or a Swordsage lead a battle through White Raven or a Warblade know how to best counter enemies through Setting Sun? Associated skills are no longer class skills if you get rid of a school. Likewise, the associated skill of the new school you take on becomes a class skill.

So, thoughts?