From: barreldragon88 | #018
Sure, it wouldn't have any weaknesses, but the Ghost/Poison typing only gives it one weakness anyway, and Psychic attacks really that commonly used? Ghost/Dark would make it not immune to Toxic, Spikes, Toxic Spikes, and Earthquake/Earth Power, so I think that's a fair tradeoff.
First of all he has four weaknesses: Ghost, Psychic, Dark, and Ground. Obviously Levitate gets rid of one so he really has three.
It's not just the Ghost/Dark that would make it broken, but Intimidate? Part of Gengar's drawbacks is that he's speedy but relatively frail. Intimidate would let him shut down Physical Pokemon. Add that to not having any weaknesses and it seems just a little bit stupid.
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