Regarding mostly the Ixion FATE, since it appears only in the Lochs and if too many people are standing there at once, even when not entirely in one place there, it can cause some congestion in the zone and it may prevent new players that are trying to complete the Stormblood story from doing so. Could you also add it in the Peaks and the Fringes and make it spawn in one of the three areas in a similar way the Odin Fate spawns in the Black Shroud?