I had an idea for a less conventional Charizard set that might work well in the sun. I'm curious to see if anyone else thinks this set might be viable:
Charizard@CharizarditeX
Nature: Timid
Ability: Solar Power
EVs: 252 SpA/252 Speed/4 HP
Flamethrower/Fire Blast
Dragon Pulse
Solar Beam/Roost
Focus Blast
Now I know what you're all thinking--running a SpA set on CharX is utterly ridiculous. But if I recall correctly, his base Att and SpA are identical. Obviously, a SpA set won't benefit at all from Tough Claws, but I think I can compensate for that.
The goal is to bring Charzard in for either a safe revenge kill in the sun (admittedly unlikely), or to have a slow bulky setup pokemon clear hazards using defog or rapid spin and manually set up Sunny Day (bulky setup pokemon is yet undetermined, could definitely use some help finding something that fits the bill), then U-Turn or Volt Switch into Charzard, who should get a free SpA boost in the sun. Ideally, I'd like to buy a 2nd SpA boost, perhaps if I can force a switch. After that, MEvolve into CharX, and benefit from STAB Fire and Dragon attacks, and much better defensive typing. In regards to attacks, I'm torn between solar beam and roost, as solar beam is just about useless if I don't have sun, but it would definitely help me deal with bulky water types and ground types that CharX is more susceptible to than CharY. This is obviously an EXTREMELY situational set, and is entirely dependent on finding the right setup pokemon, but I think the element of surprise could give me a nice edge. Thoughts?
Edit: Maybe a Scizor as my support, with Defog, U-Turn, Sunny Day, and Bullet Punch? Slow enough to be outsped by most pokemon for U-Turn, get off a Bullet Punch anyway if I have to, still has respectable bulk? Seems crazy to have a Scizor set up sun, but I'm always looking for an excuse to get him in my lineup, plus the more potential megas in a lineup, the more you can play mind games with the opponent.