About the only good thing about this event was Igglybuff and the double candies. I'm not sure where they increased the spawnrates for Chansey but they werent here. And imo if they aren't increased everywhere then they aten't increased at all. I mean Gastly and Cubone were everywhere. Here we had an increase of Jigglypuff, Slowpoke, Lickitung and Exeggcute. To a lesser extent Clefairy. During the Halloween event I also saw more Gengar's though rarely. I thought Chansey would at least be rare, not extinct
I did manage to find a Porygon at the mall u fortinately it was in the mall where Pokemon Go doesn't work.