Your In the Snowy Mountains, You Then see a weird looking Gengar In the distance, His Body is white instead of the usual Purple, he has a Long ice mist tail that's light Blue, a Spikey mask made out of ice, Black and Blue Eyes, and a reaper Made out of Ice in hand, He then speaks

Hisuian Gengar: He see you giving him a weird Look Hey! What's up the look? Uh I see, you thought I was Kanto Gengar, well you thought wrong, I'm actually a Hisuian Gengar! He laughs