Nice team, but there are some 'there things I would change, starting from Moltres, I understand well that it is the star of the team, but if one reflects Volcarona
is better than Moltres, as he also owns Hurricane, Fire Blast and Roost, however, has Quiever Dance which is considerably higher than Agility, as well as increasing the speed increases, special defense and special attack, also by Modest investments with highs in special attack and speed Volcarona also has more special attack and more speed.
So you see Volcarona is superior to Moltres, so even if the latter, I repeat, is the star of the team, I would consider even Volcarona, for the reasons listed above.
Now I would like to switch to some change on moveset of Garchomp and Ferrothorn, in fact Garchomp would do with Focus Sash> Choice Scarf
and Stealth Rock
, in this way gains a slot on Ferrothorn, on which the place of Stealth Rock we can enter Leech Seed to make stronger and to recover HP to himself and to other Pokemon.
While as Revenge-Killer for the team would spend a Scarf Thundurus T-> Ebelt Thundurus-T
, Garchomp as to kill something, especially something that is immune to Earthquake must block of Outrage, while Thundurus-T has access to Volt Switch and does not Momentum lose the team, unlike Garchomp. That is all.
Good luck, with your team!