|Stone Location||Yaschas Massif - The Ascendant Scarp|
|Mark Location||Yaschas Massif - Tsumitran Basin|
|Initial Reward||Sorcerer's Mark|
|Repeat Reward||Bomb Core x3|
So, I'm told to rid the world of Edimmu. She was prowling the Tsumitran Basin last I heard. Perhaps it is time to pay her a final visit, and join her as a Cie'th. I could not bear to raise a weapon against my own wife, after all. Not even if her mind is no longer her own.
The path you have to take to locate your mark sends you through a territory full of monsters that are, in all honesty, more powerful than the Edimmu you're going to face, so the best thing you can do here is just avoid them. Although, if your party needs some quick experience points before your next boss battle, depending on where you are in the story right now, these fights may be a good idea.
Edimmu halves damage from physical and magic attacks at least until you Stagger it. Alternate between Relentless Assault (COM/RAV/RAV) and Tri-disaster (RAV/RAV/RAV) to fill the chain gauge quickly.