Thanks for the guide. My wiz build is pretty close to this.
I tried both the ice arrow and fire orb, and I find that the ice arrow can be a pain to aim sometimes. It also has a longer cast time than fire orb. So I'm still sort of undecided to which to go with...
Fierisiu (Wiz) - 6x (Actively farming stages to support Gerisia) - Member of Mango
Gerisia (Tia) - 5x (Retired to clean after Fierisiu)
FierNado (Knight) - 2x (Medal farming contract worker for Fierisiu)