RE: The Competitive Battling Questions Thread
Hydreigon is... alright my OU standards. Its a great Pokemon, but with all the other dragons in OU, its hard for him to not be inferior to other dragons.
This is a set that only Hydreigon can perform, and its very effective.
Hydreigon @ Life Orb
Modest Nature
EVs - 4 HP/252 SpA/252 Speed
-Draco Meteor
-U Turn
-Taunt
-Fire Blast
What makes this set cool is that its hard for Blissey to stop it. She takes about 40% from a Draco Meteor. Then you Taunt to stop her from recovering, and U turn away (causing 17% damage). Once all this has been done, factoring Leftovers into the equation, Blissey will be at about 52% health left. Basically, the next time Blissey comes in to Hydreigon, she dies.
Due to the awkward speed, base 98, Hydreigon loves paralysis support. Jirachi can cause paralysis with Body Slam, and can use Wish to keep Hydreigon healthy. Something to stop the fighting types, like a Jellicent, Reuniclus, or Gyarados will also help.
Specs Hydreigon is outclassed by Latios, due to the larger speed and special attack. While Latios is Pursuit weak, Hydreigon is weak to Mach Punch, a very common form of priority. Its kind of a trade off. I'd also say that Latios does Life Orb better, due to access to Recover, as well as the higher special attack and speed.
If you really want to, a Specs or Life Orb Hydreigon look the exact same, with a different item.
Hydreigon @ Life Orb/Choice Specs
Timid Nature
EVs - 4 HP/252 SpA/252 Speed
-Draco Meteor
-U Turn
-Surf
-Fire Blast