OHHH WE'RE HALFWAY THERE!!! OH-OH LIVIN' ON A PRAYER!!!
Yup that's how it deals with SR
and what the heck do you do when charizard is the first pokemon out, and does not switch out during the battle?
Well, if we're playing in NU, where Charizard belongs, the best course of action would be to send out Carracosta to either utterly demolish it, or force it to switch. Then one would use Carracosta to set up the Stealth Rocks necessary to cripple Charizard, and victory is assured.