I have had countless experiences battling rain and sun and sand teams(don't see hail much). They are extremely hard to deal with and break you if you don't have a counter team to change the weather. For this reason I have made a team to break the weather and what would normally be a powerful team, shall be rendered useless.
1. Kill the weather bringer(politoed, ninetales, tyranitar, etc.)
2. Send in Blissey
3. Render the team useless and finish it off
Now that I've shown you my analysis, lets get on with the team shall we?
Blissey@Leftovers
Trait: Natural Cure
EVs: 252 HP 252 spd 4 def
Calm Nature
-Sunny Day
-Rain Dance
-Softboiled
-Seismic Toss
An odd set for a Blissey eh. Well let me explain why this set looks so horrid.
I needed a bulky weather setter and I asked myself, why not use the pink blob. Once I take out the bringer(politoed, ninetales). I can screw them over. Since sun screws rain teams and vice versa, I can easily take out the team. The EVs look crappy as well but I wanted the bulkiest special wall I could get. Softboiled makes special attackers cry after all their hardwork and seismic toss is so I don't get to useless. The MVP of this team, and also useless once it completes its job xD.
Terrakion@Lum Berry
Trait: Justfied
EVs: 252 HP 252 atk 4 spe
Adamant Nature
-Close combat
-Stone edge
-Swords Dance
-Rock polish
Yes, call me an idiot as much as you want but this set works almost, if not better, than the scarf or band set. My EVs also look crappy. Allow me to explain...
If the opponent starts setting, I can easily set up my two dances. Once that's done I can easily sweep with my balling STABs. My Evs also look crappy. Why do I not spend in speed you ask? After a rock polish, do I REALLY need to spend evs on speed. Instead why don't I spend it on my bulk so I can actually set up more efficiently. After the double dances this guy is unstoppable until a priority user comes along and kills me with all my defense drops from close combat.
Mamoswine@Choice Scarf
Trait: Thick Fat
EVs: 252 atk 252 spe 4 HP
Adamant Nature
-Icicle crash
-Earthquake
-Stone edge
-Superpower
Damn! this guy takes on rain and sun pokes like a boss. With scarf equipped he wont be outsped much. Ground typing takes down: Fire sun users, toxicroak. Ice typing takes out: Grass Sun-users, dragonite. I just love this guy nuff said.
Latios@Expert Belt
Trait: Levitate
EVs: 252 spa 252 spe 4 HP
Modest nature
-Dragon pulse
-HP fire
-Surf
-Psyshock
This guy serves as two things: A fighting counter, which my team doesn't appreciate and a dragon type, which I somehow manage to get one in my teams. Not much else can explain this boss.
Rotom-W@Leftovers
Trait: Levitate
EVs: 252 HP 164 spd 92 def
Bold Nature
-Hydro pump
-Volt switch
-Will-o-wisp
-Pain split
Serving me as my burner to relieve me from physical attackers that can hurt this team quite a bit. Once again I really can't say much about this guy. I just love him :D
Volcarona@leftovers
EVs: 248 satk 152 HP 54 SpD 54 Spe
Modest nature
-Hurricane
-Fiery dance
-Giga drain
-Quiver Dance
I'm a dumbass for not using this in the start. Volcarona is doing amazing on this team. Credit to Leboss.
Well tell me what you think :D