Well... From my previous Question My Gengar is a wall (O_O). Explosion is an egg move right? so I was thinking Would explosion Fit in well with perish song, Hypnosis, And Dream eater?
Perish Song Kind of Sucks, As The opponet can switch out. Relcae it with Toxic. And I Think Explosion would work great:) Its Unexpected:) *Just As The Mighty Gangar is About To Go Down, WAIT, EXPLOSION!? Amazing!
Explosion is a physical move so it is not to good on a gengar.