Dual-Screen Lead
Serperior (M) @ Light Clay
Trait: Overgrow
EVs: 252 HP / 24 SDef / 232 Spd
Timid Nature (+Spd, -Atk)
- Taunt / Substitute
- Glare / Leech Seed
- Light Screen
- Reflect
This is a set I used to use on an older version of my league team, before I finalized the 5th gen changes. You can tell, I have this thing for Pokemon with Light Screen and Reflect. What sets Serperior apart is its speed. With the given EVs, you reach 352 speed, which is far faster than anything else that would even consider a DualScreen set. You've also got the usual Taunt on the lead, and Glare for whatever might actually be faster. But speaking of Taunt, well. Watch out for it. You'll be forced to switch if you get Taunted, so careful out there. That aside, the rest of the set is rather self-explanatory. Light Screen on a predicted Special Attack, and Reflect on a predicted Physical Attack. Taunt the status moves and... Glare is... A chance at survival? You have options for whatever might come at you.
Not Serperior's best set, but it's an alternative to the cookie-cutter Contrary Leaf Storm. Give it a shot. Also, so as not to post another set entirely, I've slashed in Sub and Leech Seed, as they were used on yet a third variation of Serperior that I've tried. Light Screen and Reflect were common factors, though. SubSeeding Grass types... No surprise here.