Question

because it kinda silly for it to be a flying type with levitate

Answer 1

Nope, it doesn't. But a fan doesn't fly, it just produces air. (plus its a ghost)

Comments

I don't know whether or not to vote this down.

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well, it answered the question correctly. He says that Rotom doesn not get another ability in fan form.  The next part of it just tries to give some logic as to why it's so.