Altaria--Dragon/Flying
75-70-90-70-105-80
Natural Cure: Heals status upon switching out
Dream World Cloud Nine: All weather effects are negated when this pokemon is out on the field
Level up moves
-Pluck
-Peck
-Growl
-Astonish
-Sing
5 Astonish
9 Sing
13 Fury Attack
18 Safeguard
23 Mist
28 Take Down
32 Natural Gift
35 Dragonbreath
39 Dragon Dance
46 Cotton Guard
54 Refresh
62 Dragon Pulse
70 Perish Song
77 Sky Attack
-Peck
-Growl
-Astonish
-Sing
5 Astonish
9 Sing
13 Fury Attack
18 Safeguard
23 Mist
28 Take Down
32 Natural Gift
35 Dragonbreath
39 Dragon Dance
46 Cotton Guard
54 Refresh
62 Dragon Pulse
70 Perish Song
77 Sky Attack
Egg Moves
Agility
Haze
Pursuit
Rage
Featherdance
Dragon Rush
Power Swap
Roost
Hyper Voice
Steel Wing
Haze
Pursuit
Rage
Featherdance
Dragon Rush
Power Swap
Roost
Hyper Voice
Steel Wing
TM + HM
Claw Sharpen
Dragon Claw
Roar
Toxic
Hidden Power
Sunny Day
Ice Beam
Hyper Beam
Protect
Rain Dance
Safeguard
Frustration
Solarbeam
Earthquake
Return
Double Team
Flamethrower
Fire Blast
Aerial Ace
Facade
Rest
Attract
Thief
Sing Around
Echo Voice
Incinerate
Giga Impact
Psych Up
Level Ground
Dream Eater
Swagger
Pluck
Substitute
Rock Smash
Fly
Dragon Claw
Roar
Toxic
Hidden Power
Sunny Day
Ice Beam
Hyper Beam
Protect
Rain Dance
Safeguard
Frustration
Solarbeam
Earthquake
Return
Double Team
Flamethrower
Fire Blast
Aerial Ace
Facade
Rest
Attract
Thief
Sing Around
Echo Voice
Incinerate
Giga Impact
Psych Up
Level Ground
Dream Eater
Swagger
Pluck
Substitute
Rock Smash
Fly
Moves from 3rd and 4th Gen
Body Slam
Double Edge
Mimic
Heal Bell
Draco Metoer
Air Cutter
Ominous Wind
Snore
Swift
Uproar
Heat Wave
Mud Slap
Outrage
Tailwind
Double Edge
Mimic
Heal Bell
Draco Metoer
Air Cutter
Ominous Wind
Snore
Swift
Uproar
Heat Wave
Mud Slap
Outrage
Tailwind
The other dragon: the one that didn't quite make it into OU. Nevertheless, Altaria is a great wall in UU that's about to get better. With 75/90/105 defenses, this thing is already pretty bulky. Add resistances to Bug, Fighting, Fire, Grass, Ground, and Water amd you've got a pretty solid tank. Altaria also has one thing that many pokemon lost in the Generation shift: Roost. Roost gives Altaria instant recovery (as well a resistance to Electric). It has a great movepool with moves such as Ice Beam, Flamethrower, Dragon Dance, and Dragon Pulse. It also has a great support movepool with Roost, Haze, Heal Bell, Toxic, Psych Up, Refresh, and Roar. But two things make Altaria particularly amazing this Gen.
I) Cotton Guard
Cotton Guard gives Altaria +3 Defense, which makes it the ultimate wall. After one tun of boosting, Altaria's defense (assuming it's maxed out) becomes 765. Holy shit.
II) Cloud Nine
Weather's going to be huge this time around, and many are scrambling for weather checks. Well look no further, because Cloud Nine stops all weather effects. I know that the choice between this and Natural Cure is a tough one, but this makes Altaria a great weather check (not to mention that it resists Water, Fire, Grass, and is immune to Doryuzuu's main STAB)
Some Sets
Physical Tank
Altaria @ Leftovers/Rugged Helmet
252 HP/252 Def/4 SpDef Bold
Natural Cure/Cloud Nine
--Cotton Guard
--Roost
--Roar/Toxic/Haze/Heal Bell
--Dragon Pulse
Not much to say except boost Defense, recover with Roost, use the third slot for utility, then attack with Dragon Pulse
Boosting Sweeper
Altaria @ Life Orb
252 SpAtk/252 Spe/4 HP Modest/Timid
Natural Cure/Cloud Nine
--Agility
--Ice Beam/Roost
--Fire Blast/Flamethrower
--Dragon Pulse
Once you boost your speed with Agility, you're pretty much set to sweep. Although you may seem underpowered, you still have reasonable bulk which allows you to take a hit. You can also Roost off all the damage from the Life Orb. Dragon Pulse + Fire Blast has perfect coverage outside of Heatran.
Bulky Dragon Dancer
Altaria @ Life Orb
252 HP/128 Atk/128 Spe Impsih/Adamant/Jolly
Natural Cure/Cloud Nine
--Dragon Dance
--Dragon Claw/Outrage
--Earthquake
--Aerial Ace/Draco Metoer/Return
Again, somewhat underpowering but it's bulky enough to pull it off. I don't like being locked into Outrage, especially on a bulky pokemon like this, but some do. Draco Meteor is fun because it lowers your special attack, which you won't be needing anyway. It also helps break physical walls.
Support
Altaria @ Leftovers
252 HP/ 128 Def/128 SpDef Bold
Natural Cure/Cloud Nine
--Haze/Roar/Perish Song
--Roost
--Heal Bell/Toxic/Cotton Guard
--Dragon Pulse
All around tank with great support movepool. Haze, Roar, and Perish Song are for phazing. Roost is for recovery. Third moveslot is for spreading/healing status or gaining even more bulk. Dragon Pulse is for attacking.