Use HM2 to teach charizard fly.
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charizard
I'm 99.999999999...% positive that charizard learns flare blitz at level 66.
My friend has a level 100 charizard that used to know it, if that helps
At 36
After beating the Elite Four, go to a Pokemon Center and Trade a Charizard from Fire Red. you can get a Typhlosion by collecting 200 types of Pokemon then going to prof. birch :)