Gonna move this down into our Battling and Team-Building section.
Moves.
Basically the strategy is what's simply known as Offense/Hyper Offense. I think that you'll wanna look at some of the links in
this post here to start you off.
I'm assuming that you're gonna be doing mainly 3v3 Battle Spot Singles, yeah?
If we're going with the hyper offense theme here, good place to start with Talonflame would be a Choice Band set:
Talonflame @ Choice Band
Ability: Gale Wings
EVs: 4 HP / 252 Atk / 252 Spe
Adamant Nature
- Brave Bird
- Flare Blitz
- U-turn
- Tailwind/Roost
Hits really hard immediately. If you're cool with taking a turn to set up, a Swords Dance set is an alternative. Normally you'd wanna run a Rapid Spinner or Defogger on your team since Talonflame is really weak to Stealth Rock, but entry hazards are kinda rare in Battle spot singles so that not absolutely neccessary.
Talon+Chomp+Aegis makes for a decent core since they resist most of each other's weaknesses and provide good offensive coverage, but you're gonna need something to deal with Ground types, particularly Mamoswine. Greninja, Gyarados, Wash Rotom, and Azumarill are good choices, but Water has plenty of good Pokemon to pick from, so it's sorta up to you I guess.
If you're using Lucario, the mega is the way to go. Can run either a physical or a special set. Mixed forms of Aegislash are generally better than purely physical or special ones.
Hope that helps and gets you started. If you got more questions and whatnot, feel free to ask.