Pretty sure I need at least something to go on for it. Not much of a flying type expert so anything helps really.
Alright, here are the most useful sets for you to use:
Charizard Y:
-Fire Blast
-Solar Beam
-Dragon Pulse/Focus Blast
-Earthquake/Roost
Nature: Hasty/Mild/Modest/Timid
EVs: 4 Atk/252 SAtk/252 Spe
Item: Charizardite Y
Yveltal:
-Dark Pulse
-Oblivion Wing
-Focus Blast/Sucker Punch/Foul Play
-Taunt
Nature: Modest/Timid/Rash/Mild/Hasty/Naive
EVs: 4 HP/252 SAtk/252 Spe
Item: Life Orb
or
-Foul Play
-Taunt
-Toxic/Sucker Punch
-Roost
Nature: Calm/Bold/Impish
EVs: 248 HP/8 Def/252 SDef or 248 HP/252 Def/8 SDef
Item: Leftovers
or
-Dark Pulse
-Oblivion Wing
-Hurricane/Foul Play
-U-turn/Toxic/Focus Blast
Nature: Modest
EVs: 4 HP/252 SAtk/252 Spe
Item: Choice Scarf
Noivern:
-Draco Meteor
-Flamethrower
-Focus Blast
-Switcheroo/Hurricane/U-turn/Roost
Nature: Naive/Timid
EVs: 4 Atk/252 SAtk/252 Spe
Item: Choice Specs/Life Orb
Ability: Frisk/Infiltrator
Dragonite:
-Dragon Dance
-Outrage/Dragon Claw
-Extreme Speed
-Fire Punch/Thunder Punch/Earthquake
Nature: Adamant/Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Lum Berry/Weakness Policy
Ability: Multiscale
Gliscor:
-Earthquake
-Knock Off/U-turn
-Protect/Roost
-Toxic/Stealth Rock
Nature: Impish
EVs: 244 HP/40 Def/224 Spe
Item: Toxic Orb
Ability: Poison Heal
Talonflame:
-Swords Dance
-Flare Blitz
-Brave Bird
-Roost
Nature: Adamant
EVs: 48 HP/252 Atk/208 Spe
Item: Life Orb/Sharp Beak/Sky Plate
Ability: Gale Wings
or
-Flare Blitz
-Brave Bird
-U-turn
-Will-o-Wisp/Tailwind
Nature: Adamant
EVs: 48 HP/252 Atk/208 Spe
Item: Choice Band
Ability: Gale Wings
or
-Bulk Up
-Brave Bird
-Roost
-Substitute/Taunt
Nature: Careful
EVs: 248 HP/176 SDef/84 Spe
Item: Leftovers
Ability: Gale Wings
Zapdos (Poke Bank one is preferred, since Heat Wave is a past gen move tutor):
-Thunderbolt/Volt Switch
-Heat Wave
-Roost
-Toxic/Defog/Hidden Power (Ice)
Nature: Calm
EVs: 248 HP/244 SDef/16 Spe
Item: Leftovers
Offensive Zapdos is outclassed by both formes of Thundurus.
Offensive:
-Dragon Dance
-Waterfall
-Earthquake
-Bounce/Stone Edge
Nature: Adamant/Jolly
EVs: 252 HP/4 Def/252 Spe
Item: Life Orb/Lum Berry
Ability: Moxie
-Dragon Dance
-Waterfall
-Bounce/Earthquake
-Substitute/Taunt
Nature: Adamant
EVs: 120 HP/64 Atk/100 Def/224 Spe
Item: Leftovers
Ability: Intimidate
-Rest
-Sleep Talk
-Waterfall
-Roar/Dragon Tail
Nature: Impish
EVs: 248 HP/8 Atk/252 Def
Item: Leftovers
Ability: Intimidate
Zekrom, why do you keep ninja'ing me? D:
Edit: I don't like offensive Skarmory at all; it's a waste of its defensive capabilities:
-Stealth Rock/Spikes
-Whirlwind
-Roost
-Brave Bird/Defog
Nature: Impish/Careful
EVs: 252 HP/252 Def/4 SDef or 252 HP/4 Def/252 SDef
Item: Leftovers/Shed Shell
Ability: Sturdy