With the increase in Gastly spawns over the past couple of weeks, I nabbed a few high-IV ones to evolve. Then I realized that I’m not really sure what I would use Gengar for, especially with its poor defense.
With poison as a second type, it gets hammered by psychic types, which ghosts normally counter. As a ghost, it gets bounced by other ghosts. I guess I could use it for neutral damage against fighting types, but wouldn’t it make more sense to use a STAB option like Psychic or Flying instead?