All the Levitate guys get new abilities!
Gengar- I like the ideas of Infiltrator on him. He's a shadow and shadows don't give a shit about walls and barriers.
Weezing- Aftermath. He's known for exploding.
Mismagius- Magician. I know the ability isn't very good, but it wears a damn witch's hat.
Unown- I don't know... Protean maybe? Then at least off type hidden powers do a little more damage?
Flygon- Tough Claws. Doesn't hep his Earthquakes, but look at those claws, man!
Lunatone- Magic Bounce. It's hard to think of something good for this guy.
Solrock- Magic Guard, I guess?
Claydol- Regenerator, because clay is easy to rebuild.
Chimecho- Shadow Tag, I suppose? If not maybe Unaware since it looks dopey.
Latios and Latias- both get Inner Focus because they're good enough already.
Carnivine- Either Leaf Guard or Chlorophyll. At leas Chlorophyll improves his abysmal speed.
Rotoms- Neutral getsAdadptability because he's the one that can change and has the worst stats. Heat gets Flame Body. Wash gets Storm Drain. Fan get Motor Drive. Mow Gets Solar Power. Frost Gets Refridgerte even though he doesn't have a lot to do with it. It just makes sense.
Uxie- Analytic because it is all about knowledge and is already slow.
Mespirit- He's all about emotion, so how about either Friend Guard or Competetive?
Azelf- His thing is willpower. I'm thinking Guts, even though he has small muscles.
Cresselia- Magic Guard would probably be too good on it. Multiscale maybe? I'm not sure.
Eelektross- Suction Cups because they latch onto prey.
Cryogonal- Probably Snow Warning
Hydreigon- Hustle. Is it weird that I kind of liked Hustle on Deinos and Zweilous and wish Hydriegon still had it? I man, I know he's supposed to be special, but he has plenty of good physical moves too.