Charizard shouldn't be played as a revenge killer, purely as a late game sweeper. I agree with Noobcubed in the sense that it really isn't a great scarfer. If im sweeping with zard, I would much rather use a LO or Specs due to charizard's noticeably low power when unboosted.If Scarfzard becomes really dominant, then Scarf Electabuzz and Tauros are going nowhere. They will just be used to check Charizard not Jynx.
I was never really sold on Scarfzard anyway to be honest. I don't get why it's so highly rated when there are other Scarfers with similar power and speed that aren't crushed by Stealth Rock (like Primeape and Simipour, for example). It's also fairly easily revenge-killed by anything with Sucker Punch or Aqua jet (after rocks). Sure it's good late-game, but so are other Scarfers which can offer more in the mid-game too, because of their ability to come in multiple times throughout the match.
On the otherhand, scarf braviary is cute.