I was looking for a Skarmory's thread but there wasn't, so i decided to create one.
Skarmory
#227
Steel/Flying
65 HP / 80 Atk / 140 Def / 40 SAtk / 70 SDef / 70 Spe
Abilities: Keen Eye (prevents the Pokémon from losing accuracy)
Sturdy (It cannot be knocked out with one hit)
Hidden Ability: Weak Armor (Physical attacks lower Defense and raise Speed)
Confirmed new (TM) moves:
Roost
Steel Wing
Sleep Talk
Dark Pulse
Confide
Overview:
Skarmory takes flight again to block most of physical hit thrown at it. Steel / Flying is an awesome type combination. It seems like Sturdy will remain as his main ability due to how resistant it makes Skarmory with the help of Roost, which now has became a TM.
With the increase of Fire Type Pokémon in XY, Stealth Rock has got more weight than Spikes. Its really useful against Pokémon such as Talonflame, Delphox, Charizard, etc. But spikes still remains as a viable choice, not a bad one indeed.
Most BW2 OU sets are also still viable, and can be found here.
Physical Wall (I do not claim to have invented this set)
Skarmory, Impish Nature, 224 HP / 252 Def / 32 SDef @ Leftovers / Shed Shell
Ability: Sturdy
Stealth Rock / Spikes
Roost
Whirlwind
Brave Bird / Taunt
This looks most likely a standard set for Skarmory. The choice of Stealth Rock or Spikes is up to you.
I'd think the other sets in BW are also viable too, what do you think?

Skarmory
#227
Steel/Flying
65 HP / 80 Atk / 140 Def / 40 SAtk / 70 SDef / 70 Spe
Abilities: Keen Eye (prevents the Pokémon from losing accuracy)
Sturdy (It cannot be knocked out with one hit)
Hidden Ability: Weak Armor (Physical attacks lower Defense and raise Speed)
Confirmed new (TM) moves:
Roost
Steel Wing
Sleep Talk
Dark Pulse
Confide
Overview:
Skarmory takes flight again to block most of physical hit thrown at it. Steel / Flying is an awesome type combination. It seems like Sturdy will remain as his main ability due to how resistant it makes Skarmory with the help of Roost, which now has became a TM.
With the increase of Fire Type Pokémon in XY, Stealth Rock has got more weight than Spikes. Its really useful against Pokémon such as Talonflame, Delphox, Charizard, etc. But spikes still remains as a viable choice, not a bad one indeed.
Most BW2 OU sets are also still viable, and can be found here.
Physical Wall (I do not claim to have invented this set)
Skarmory, Impish Nature, 224 HP / 252 Def / 32 SDef @ Leftovers / Shed Shell
Ability: Sturdy
Stealth Rock / Spikes
Roost
Whirlwind
Brave Bird / Taunt
This looks most likely a standard set for Skarmory. The choice of Stealth Rock or Spikes is up to you.
I'd think the other sets in BW are also viable too, what do you think?