Mostly Zubat and Gastly. But i think you can also get Spiritomb if you go underground and talk to 29 people (Not including Hikers)
Good luck trainers!
Chat with our AI personalities
You can catch Duskull in Pokemon Platinum by going to the Lost Tower that is near Solaceon Town however you can only find it at night.
to catch a Pokemon in Pokemon tower defense, drag the pokeball at the bottom of the screen onto the Pokemon you want when it is on low health.
burnded tower
catch it at the burnt tower
go to pokemon tower or lost cave in leaf green(lost cave is on five island(pokemon tower is in lavender town))