The idea is to augment the Mayakashi core with an Eldlich engine, since it mainly plays out of the main deck so you can play around the Extra Deck xeno-lock on some of the Mayakashi cards. If you can manage to do the full Mayakashi combo and dump your synchro monsters into the graveyard, you can get additional summons of them using the Eldlixir cards. Alternatively, if you open mostly Eldlich cards, you can use the Eldlixirs to special summon Hajun to get everything started.
The Zombie World package is also in here, although you could consider cutting them to add in more of your main engine for more consistency, since you do run the risk of opening the wrong mix of cards at times. Like any Eldlich deck, this deck has a pretty good grind game, but this version requires a lot of balancing between the two main engines.