I'm gonna do a friendly single type tournament with some friends in X/Y. Each one of us will use a team with one pokemon type, then fight each other in league format.

I'm going with fire but truth is I'm pretty casual when it comes to online play. There are any fire mons that can learn electric or water attacks?

Also, I'd apreciate some ideas to avoid to be raped by dragons.

I thought something like.

Blaziken (for the fight)
Houndoom (for the dark)
Charizard or Talonflame (for the ground counter)
Heatmor (cause is cool)

And not sure who should be the other two.