Charizard X is capable of running mixed, physical, and special sets, and has access to a large amount of bulk at somewhat decent typing. Charizard Y has excellent coverage thanks to Solar Beam and Heat Wave/Flamethrower/Fire Blast. Both have access to recovery.

How long, assuming that the current meta lasted indefinitely, would smogon hypothetically take to ban Mega Zards for muh 50/50?