Pokémon X and Y - Competitive Side

I'm wondering how to setup my Talonflame. I bred a lot with good IVs and a Jolly nature on them. From reading around, it's really nice with high speed and gale wings, but has quite a few things barring it down.
Attacking stats, bulk, and move pool drags it down a bit, making it predictable. It's also pretty much a suicidal bird if it's using nothing but flare blitz and brave bird. Acrobatics with a flying gem is a good option, but it doesn't get much after using it up. Swords dance seems to be a must to make up for a low base attack. Besides attacking, it can somewhat become a staller using will-o-wisp to cripple physical attackers, toxic, priority roost, and u turn.

I'm assuming you've looked here?

Is Delphox really better off with a Modest nature over Timid nature? :\

Definitely Timid to beat the base 100s who run Timid.