Mephisys, the dark one.

[Realtamoon]

For years Mephisys studied the charts and lore, gathered power and resources, all for this night, this cosmic moment. The spirits and dead rise as the eldritch energy and sinister words flow from Mephisys. Now they are under Mephisys' control, following their every command as they set into motion their long lid plan to reshape the world to match their ideals.