You sacrifice 1 Sigil (1 point) in order to find your Gengar + Dusknoir (Dusknoir is the second point), then pivot into your second gengar when dusknoir ir dead and gengar is low. I prefer center lady over cape, because they can't red your gengar, and you can heal it before using dusknoir for 30HP instead of adding 20HP with cape. I don't know what the good ratio of iono+comm is. 1 x speed is copium to start with sigil. I have tried adding Celestic Town Elder cause if they kill duskull it's GG. Atonish Gastly cause of helmet (ouch).

Been tweking Gengar since launch but still copium at much, fav card abilty and pokemon (dont tell me to play the other gengars plz, I love him). Love you decks Mog, very fun to play