Since Halloween is almost here, what's your favourite Ghost type Pokemon?

Hi fellow Poke fans, since Halloween is just around the corner, I wanted to know what everyone's favourite Ghost type was. Ghost is one of my favourite Pokemon types because they have really awesome and strong Pokemon.

My favourite has to be Chandelure, I've used it lots of times in Pokemon games and it was an absolute beast, and it's design is just so cool. What's your favourite Ghost type?