oh lucky to jLT player, they seems like changing some Guild Quest.
All Guild Quest that require to buy PvP potions like 4-7 8-7 and 10-7, they changed it to like Collect certain Items or Defeat Certain Monsters now. (I believe it was too much work to get those PvP potion)
HorieChan 14x RuinWalker HiranoChan 8x Artist Kugimiyachan 8x Blader xRozalinx 11x Gunslinger
Gotta start think of how to obtain Magical full set.