http://www.smogon.com/dp/pokemon/deoxys-s
[SET]
Name: Dual Screen Deoxys-S
Move 1: Light Screen
Move 2: Reflect
Move 3: Taunt
Move 4: Stealth Rock / Spikes / Recover
Item: Light Clay
Nature: Timid
EVs: 252 HP / 4 Def / 252 Spe
[SET COMMENTS]
<p>Designed to be used as a lead, this set stops suicidal leads such as Aerodactyl or Azelf from being able to set up Stealth Rock, while setting up your own entry hazard as well as eight turn Light Screens and Reflects.</p>
<p>Light Clay is the item of choice on this set due to the fact that Deoxys-S abuses both Light Screen and Reflect. Focus Sash is pointless for this reason, and with the ubiquity of Tyranitar leads, Light Clay is superior. With Reflect up, Deoxys-S is able to survive a Choice Banded Crunch or Pursuit from Tyranitar, and is only 3HKOed by Bronzong's Gyro Ball.
<p>The decision between Stealth Rock or Spikes depends on which is needed more. Stealth Rock is generally the preferred option as it only takes one turn of set-up. However, Deoxys-S is one of the few viable users of Spikes, so it is the preferred entry hazard if another Pokémon on your team knows Stealth Rock. However, if your only goal is to set-up a Light Screen or Reflect for your main sweeper, by all means use Recover. This allows Deoxys-S to continually switch-in and set-up a screen, while making up for the lack of Leftovers as a held item.</p>
<p>Max Speed is required to, at worst, tie against opposing Deoxys-S. The rest of the EVs are poured into its abysmal HP to equally maximize Deoxys-S's defenses.</p>
[SET]
Name: Dual Screen Deoxys-S
Move 1: Light Screen
Move 2: Reflect
Move 3: Taunt
Move 4: Stealth Rock / Spikes / Recover
Item: Light Clay
Nature: Timid
EVs: 252 HP / 4 Def / 252 Spe
[SET COMMENTS]
<p>Designed to be used as a lead, this set stops suicidal leads such as Aerodactyl or Azelf from being able to set up Stealth Rock, while setting up your own entry hazard as well as eight turn Light Screens and Reflects.</p>
<p>Light Clay is the item of choice on this set due to the fact that Deoxys-S abuses both Light Screen and Reflect. Focus Sash is pointless for this reason, and with the ubiquity of Tyranitar leads, Light Clay is superior. With Reflect up, Deoxys-S is able to survive a Choice Banded Crunch or Pursuit from Tyranitar, and is only 3HKOed by Bronzong's Gyro Ball.
<p>The decision between Stealth Rock or Spikes depends on which is needed more. Stealth Rock is generally the preferred option as it only takes one turn of set-up. However, Deoxys-S is one of the few viable users of Spikes, so it is the preferred entry hazard if another Pokémon on your team knows Stealth Rock. However, if your only goal is to set-up a Light Screen or Reflect for your main sweeper, by all means use Recover. This allows Deoxys-S to continually switch-in and set-up a screen, while making up for the lack of Leftovers as a held item.</p>
<p>Max Speed is required to, at worst, tie against opposing Deoxys-S. The rest of the EVs are poured into its abysmal HP to equally maximize Deoxys-S's defenses.</p>