http://www.smogon.com/dp/pokemon/dialga
[SET]
name: Trick Room
move 1: Trick Room
move 2: Draco Meteor
move 3: Outrage
move 4: Fire Blast / Earthquake
item: Life Orb / Shuca Berry
nature: Quiet
evs: 4 HP / 252 Atk / 252 SpA
ivs: 30 Atk / 0 Spe
[SET COMMENTS]
<p>Although it may seem strange to use Trick Room on a Pokemon with Base 90 Speed, Dialga is relatively slow by Ubers standards, which can actually let Dialga sweep if it sets up. With a Quiet nature and the listed IVs, Dialga reaches 166 Speed, which allows it to outpace virtually every common threat in Ubers when Trick Room is active. Since Dialga has no use for Speed EVs, it can maximize both its Attack and Special Attack, allowing it to abuse two powerful STAB attacks: Draco Meteor and Outrage. With a Life Orb boost, Dialga functions as a powerful wallbreaker, as it can simultaneously nail physical walls like Groudon and special sponges such as Blissey. The final slot is dedicated to hitting Steel-types that resist Dialga's powerful Dragon-type attacks. Fire Blast will roast most Steels in the sun, but Earthquake is a suitable alternative if you want to be able to hit Jirachi, Heatran, and Metagross super effectively in the rain.</p>
[ADDITIONAL COMMENTS]
<p>When using Fire Blast, it is recommended to set Dialga to level 99. This is because the standard Ubers Scizor hits 166 Speed, which means it ties with minimum Speed Dialga when it's at level 100. At level 99, Dialga will outpace Scizor after it sets up Trick Room and can OHKO the steel bug with Fire Blast. However, if you choose to use Earthquake, Dialga should remain at level 100 since it won't be able to beat Scizor regardless. Another option to consider is Shuca Berry instead of Life Orb. While Life Orb is generally superior to boost Dialga's already powerful attacks, Shuca Berry will allow Dialga to survive a Life Orb-boosted Earthquake from Groudon and set up Trick Room.</p>
<p>Not many Pokemon have the bulk to survive Dialga's onslaught, since it can hit on both the special and physical side extremely hard. Lugia is a counter that comes to mind because it can outstall Dialga with Roost as Life Orb recoil accumulates. Wobbuffett can't be OHKOed by any of Dialga's attacks, and can take out Dialga in one shot with either Mirror Coat or Counter. If Dialga isn't set to level 99 or doesn't pack a Fire-type move, Scizor will gladly switch in and OHKO Dialga with Superpower. By the same token, any Dialga without Fire Blast will be hard-pressed to hurt Skarmory and Forretress. Without Earthquake, Heatran will completely wall Dialga, while Jirachi and Metagross can do the same in the rain. When Trick Room is not up, Dialga must be careful against Groudon if it doesn't have a Shuca Berry, as it will gladly OHKO Dialga with a powerful Earthquake.</p>
<p>Dialga makes a great "selfish" user of Trick Room thanks to its blistering offenses, but there are still several Pokemon you should consider pairing it with. Swords Dance Groudon is a wonderful partner for Dialga, since it can take advantage of Trick Room to outpace and OHKO Lugia after Stealth Rock. With Swords Dance, Groudon also fares well against most Steel-types that wall Dialga, as even Skarmory can't keep up with boosted Stone Edges or Fire Punches. Wobbuffet has great synergy with Dialga because it can use Encore to give Dialga a chance to set up Trick Room, and in turn can use Dialga's Trick Room to outpace virtually everything in the metagame. Other Pokemon that can set up Trick Room are worthwhile partners for Dialga. For example, Bronzong can wall Groudon and help Dialga by setting up Trick Room, while Palkia can take a more offensive approach and still maintain the ability to set up Trick Room. If you aren't using Dialga in a full Trick Room team, you might want to invest in fast sweepers like Mewtwo and Darkrai that can help clear a path for Dialga to sweep late-game.</p>
