A good team for a ghost type gym leader

[StarWalker17]

I'm wanting to become the gym leader for the ghost type gym on pearl I have good idea want my pokes are going to be but you can give me better ideas.

Here are my ideas for a team-
-Chandelure fire/ghost
-Aegislash steel/ghost
-Froslass ice/ghost
-Dhelmise grass/ghost
-Palossand ground/ghost
-Gengar poison/ghost

P.S. - it would be helpful for you to list some good move sets for them.

 

[Noobtis]

Team seems pretty goods not sure about the moves tho

 

[aetherArcanist]

It's a good start, but it's strange to see a ghost team without Mega Sableye, it's definitely a must-have for a ghost gym as it's hard to deal with.
Here's an interesting Trick Room team you could use for inspiration, I haven't seen any Trick Room teams on Pearl so your challengers would also deal with some surprise factor!

https://www.smogon.com/forums/threads/spooky-doom-ghost-trick-room.3612964/