Which Fjorm would you go with?

Attack is her best boon, but a defense bane is a superbane as well as one that makes her frail in melee combat. The best you have may very well be neutral.

While it may seem strange, you could go w/ high spd. I built a high spd Fjorm with fury 3 and spd ploy. She can double some units, given that is recieving a buff.