I've bought and received countless rare souls during this event, both ritual and standard, but have not received a single 4* or 5* character out of any of them. Only getting some 3* characters from normal 1*-3* souls. No sign of any of the Mayan Princesses in any soul although I have battled a couple of people with Mayan Princess Warrior. Still trying to get Witch Doctor as at least he looks decent.