Gastly, the Gas Pokemon

I have no idea how this is physically possible, but my egg build for this pokemon is as follows;

Lick
Fire Punch
Ice Punch
Thunder Punch

Yes. The big ball of gas can punch things. It makes total sense. When it evolves at lv 25, teach it Shadow Punch over Lick. But first, the breeding process;

1) Breed a male Dusknoir(with the moveset Thunder Punch, Fire Punch, Ice Punch, and whatever) with a female Gastly/Haunter/Gengar.
2) Breed for a desired nature.

Actually, due to Gengar's low Attack stat, you'll likely not want these moves other than to edit it a tad bit. One good idea could be;

Skill Swap
Fire Punch
Ice Punch
Shadow Punch

For Skill Swap, you'll need to be in Generation IV. I know what you're thinking. "Brock, those attacks are all still physical! What have you been drinking?"

Firstly, grain alcohol, it's cheap and gets you totally wasted, and has made me unappealing to the opposite sex. Kids, don't drink grain alcohol.

And note the Skill Swap ability. It lets you swap Abilities with whoever you use it with. A fun thing to do would be to enter double battles with a Golurk, and swap their abilities. Golurk will have Levitate, giving it its 4th immunity, which is just fun, but more importantly, Gengar will have the Iron Fist ability, which means its punching attacks are 30% stronger. And Gengar will be able to compensate its new Ground-weakness with the Ice Punch. A similar outcome for a Hitmonchan over a Golurk.

Of course, Gastly, like many Ghost types, are able to be used in a variety of ways, and this is just one of them. What is YOUR build?

Brock out.