
#146 Moltres
Base Stats: 90 HP / 100 Atk / 90 Def / 125 SAtk / 85 SDef / 90 Spd
Ability: Pressure
Notable Physical Movepool
Aerial Ace
Pluck
U-Turn
Notable Special Movepool
Flamethrower
Fire Blast
Heat Wave
Overheat
Air Slash
Ancientpower
Solarbeam
Extrasensory (XD Purification)
Notable Support Movepool
Roost
Will-o-Wisp
Morning Sun (XD Purification)
Moltres, of course, is murdered by Stealth Rock. No sense in beating around the bush there. It does have a nice 4x resistance to bug and grass along with a myriad of other good resists, making it a good counter to things like Tangrowth (sans Ancientpower).
Moltres @ Choice Specs
Nature: Modest (+SAtk -Atk)
Trait: Pressure
EVs: 4 HP / 252 Spd / 252 SAtk
-Flamethrower
-Air Slash
-Extrasensory
-HP Grass
Does serious damage to most things in the game. Perhaps Choice Specs aren't the best choice of item for it, but they could work pretty well.