Shifty Shades of Prey

Walkthrough

 * Talk to Nantoto at H-8 in Lower Jeuno after you have completed 100 unique Records of Eminence quests.
 * She asks you to kill shadows in The Eldieme Necropolis.
 * Kill 10 Fomor family monsters in The Eldieme Necropolis. You must first activate the Records of Eminence quest under Other -> RoE Quests -> Culling The Darkness to get credit.
 * When you kill the last shadow you will complete the Records of Eminence quest and receive 1500 sparks and 2500 exp.
 * Report back to Nantoto for a short cutscene to complete the quest and obtain the 5 Copper Vouchers.