How to Raise

The best nature for Talonflame is Adamant and boosting Attack and Speed EVs. Gale Wings is the best ability for competitive battling as it allows flying moves to always get priority. Because Gale Wings is a hidden ability, you have to catch a Fletchinder in a Friend Safari. If you plan to breed for IVs you'll need to catch a female with Gale Wings.

Battle Sets

Nature: Adamant
Ability: Gale Wings
Item: Sharp Beak
Attacks: Brave Bird, Flare Blitz, Steel Wing, Aerial Ace

Sharp beak is to increase Talonflame's flying type moves. Brave Bird and Flare Blitz are for hard hitting but be careful with recoil. Steel Wing is to deal with fairy types and rock types, and Aerial Ace is there for a non-recoil attack.

Nature: Adamant
Ability: Gale Wings
Item: Leftovers
Attacks: Brave Bird, Flare Blitz, Steel Wing, Roost

Leftovers and Roost are for healing Brave Bird and Flare Blitz recoil.

Other Options

Acrobatics: Another option, but to use its full power you would have to go without an item.

Flame Charge: In place of Flare Blitz if you fear the recoil

Fly: Fly is best avoided as it gives your opponent a free turn to set up.

Giga Impact: This is the most powerful attack Talonflame gets with 150 damage, but since Talonflame has to rest next turn it is a risky move.

Rest: Unlike Roost it fully heals HP and status. However, because Rest is a normal type attack it does not get the Gale Wings priority. It also takes time to wake up.

Swords Dance: To give an added boost to Talonflame's already high attack.

Tailwind: Double and triple battles only to give a boost in speed to the entire team

U-Turn: It gives Talonflame a chance to hit hard and retreat, but could be risky on reentry if entry hazards are up.