Quote Originally Posted by Geo View Post
It is worth noting that sometimes it is even advisable to run Cassiopeia's skillset over Andromeda's. You get slightly weaker healing and Defense buff, and in turn get access to her Chaos Magic without using a valuable EX slot. Resuscitation is not as overpowered as it may seem at first glance.

So yeah, D'art, Mordred and Hercules should be unlocked before Andromeda.
And Joan. Andromeda's heals are unlikely to save you against heavy hitters, whileas Joan's damage cut just might. This may allow you to clear some content way earlier than what you otherwise could.