I run this set on Showdown, so don't bite my head off if Gale Wings isn't released or something.
Talon-Stallin'
Talonflame @ Leftovers
Ability: Gale Wings
EVs: 8 SDef / 248 HP / 252 Def
Impish Nature
- Brave Bird
- Will-O-Wisp
- Taunt
- Roost
Physically defensive, obviously. Basically, the point is to bring him in as a lead, outspeed and Taunt any hazard setters, force a switch, and get a burn on something. Provided there's no miss, 50/50 chances on what you do then. If a physical attacker is switched in, no problemo. This set obviously can't take a Stone Edge from a Tyranitar or anything like that, but I've sponged unboosted Waterfalls from a Gyarados with him. This thing is a phenomenal physical wall against anything that's not a rock move if it burns the attacker. Priority Roost allows Burn-Stalling. Brave Bird does reliable damage, though is walled by a lot of things, but not a lot of things that won't be utterly crippled by a burn and priority Roosting. Even without investment in Spe, Lvl 100 stat with 31 IV's is 288, which ain't too shabby and outspeeds literally every common lead out there. I'm planning on playing around with this set and replacing Taunt with Flame Charge or some other physical Fire move, preferably not Flare Blitz as I don't want my only two attacking options to have recoil, but I like using this set as a lead. One particular problem, though, is Cloyster. Basically, you can either Taunt it, preventing it from using Shell Smash... but if it goes for Rock Blast instead, you've got a dead Talonflame... or try to get the burn, and survive that Rock Blast, but if it went for Shell Smash instead, you better switch in something that can wall it/kill it despite those boosts.
If whatever switches in is a special, like Starmie, you switch out and make sure to have a reliable spinner, because this and just about any other Talonflame set can really suck if SR is up when it comes in.
Specially defensively-viable Steel types also work fantastically with this Talonflame as a defensive pair, for example, and in particular: Ferrothorn. They resist/are immune to eachother's weaknesses, and generally just match up well. A max Sp.Def and HP Aegislash@Leftovers w/Shadow Ball, Sacred Sword, King's Shield, and Toxic also matches well, and allows a secondary Toxic Stalling option. Since King's Shield doesn't blocks status moves though, running a viable Aromatherapy user such as Florges is also imperative.