So, our leaker cannot figure out how to evolve Gourgeist.
He has leveled her up to 50, tried a leaf stone, and feeding her in amie with no luck.
She may evolve at a higher level, with a dusk stone, or some other unknown method.
Also, pumpkaboo can learn Trick or Treat. It turns the opponent in to a ghost type! Which will be nice to have the ghost v ghost super effective stab move, like shadow ball! Though, look out, the opponent might have a ghost move too! Which would give your opponent a STAB advantage! Not sure how useful it is, but I just love the description of the move.
I'm in love:
Spoiler:
Trick Or Treat sounds like one really interesting move we have, it's like a Ghost-type version of Soak in a way. And I hope the leaker can eventually uncover on how to evolve Pumpkaboo into Gourgeist. Maybe it might be a new method we don't know about.