http://www.smogon.com/dp/pokemon/ampharos
[SET]
name: Rain Support
move 1: Rain Dance
move 2: Thunder
move 3: Hidden Power Water
move 4: Safeguard / Reflect / Light Screen
item: Damp Rock
nature: Modest
evs: 252 HP / 76 SpA / 180 SpD
[SET COMMENTS]
<p>A support move in Ampharos' arsenal that has been neglected hitherto is Rain Dance, which Ampharos can set up and exploit with ease. With rain support, Ampharos can take advantage of Thunder, which is approximately 25% more powerful than Thunderbolt and offers a 30% paralysis rate. Hidden Power Water receives a 50% boost in power in the rain, and helps Ampharos take down Steelix and Claydol, two common UU Pokemon that would otherwise wall it. The final slot is to help a sweeper get in safely and ensure its sweep. Safeguard blocks harmful status, and can help Kabutops avoid Weezing's Will-O-Wisp, for example, or allow Omastar to avoid Hypno's Thunder Wave. Reflect is useful so priority attacks like Technician Hitmontop's Mach Punch or Absol's Sucker Punch don't stop your sweep, and Light Screen is useful to sponge Surfs from opposing bulky waters.</p>
<p>The EVs ensure that Ampharos is never OHKOed by Omastar's rain-boosted Life Orb Surf, even after taking Stealth Rock damage into account, making it an emergency check against opposing teams that attempt to exploit your rain and turn it against you.</p>