The optional Expert stances quest & Expert stances:

here also a list of things you'll need to have done to start the quest:

1: Completed the Reboldeux sewers quest.
2: Have a emilia or emilia the sage in your family.

-Get emilia and talk to the patriarch in the mayan city.
-Then talk to Narr, he will say you need to go to oculta fortress to kill Kobold Elders for a chance of a quest drop. (bring lots of sc and try around h8)
-Talk to gertrude with emilia.
-Talk to emilia, and now you can but the expert stances.

Expert stances:

all of the five expert stances will need 6 great stones and a symbol.
great stones are bought in cash shop or bazaar for 100 gold each, and symbols are dropped of raid bosses and new boxes,

Symbols needed per stance:



Symbols dropped by raid bosses:

With 3.0 some raid bosses can drop symbols for those stances, here's a list:




sources:
http://66.102.9.104/translate_c?hl=nl&sl=ja&tl=en&u=http://doratomo.jp/~sannpomiti/info/692.html&usg=ALkJrhgrFNX3Kfmgu4okUe8L3H1D5JVbnA
http://66.102.9.104/translate_c?hl=nl&sl=ja&tl=en&u=http://doratomo.jp/~sannpomiti/info/694.html&usg=ALkJrhhVQcQAcapfMqGjD10iZOtsnTsVjQ