Hey, so I built this team a while back and haven't actually used it yet, so thought I would get an RMT on it to see what people thought about it. I'm sure there are plenty of weaknesses in it and that it can be improved greatly with some help, so any would be appreciated so onto the team:
Politoed @ Expert Belt
EVs: 6 HP / 252 Special Attack / 252 Speed
Hidden Power Grass
Politoed is my Drizzler, and hence kept safe for activating drizzle if they have a weather changer on their team, but with expert belt hits hard. Many people will think it is on a choice item if it hits hard enough and hopefully switch something in that I can then hit with one of my moves, which provide nearly perfect coverage
Tentacruel @ Black Sludge
Ability: Rain Dish
EVs: 252 HP / 240 Defense / 16 Speed
If Tentacruel gets in and sets a sub up, it can lay down toxic spikes and spread burns with Scald very easily. With Black Sludge and Rain Dish in effect, it regains 3/16 HP every turn, so if a Sub isn't broken in the first turn, it can set another from full HP, or if it manages to get in, take a hit, set a sub on a switch, then by the time another Pokemon on their team is in, it will have recovered over one quarter HP if they break the sub first turn, or one half if it takes 2 (3/16 - 4/16 + 3/16 + 3/16 = 5/16 for first turn sub break, 8/16 for second turn.) With the given EVs, it is nearly as bulky in Defensive as well as Special defensive, and sets up the first part of the Defensive core trio: Tentacruel, Jellicent and Ferrothorn.
Metagross @ Life Orb
Ability: Clear Body
EVs: 52 HP / 252 Attack / 206 Speed
Metagross is the tank on this team, with investment on Attack and Speed, and Agility to boost it even further on a switch. After a Boost it outspeeds most of what would counter it. It's moves provide good coverage and a crucial electric type attack for opposing water types such as Jellicent or Tentacruel. However if it comes in and doesnt have a boost then it will struggle to perform as well, and may be taken down without a single K.O to its name.
Jellicent @ Rocky Helmet
Ability: Water Absorb
EVs: 252 HP / 36 Defense / 220 Special Defense
Jellicent is my spin blocker and main burn spreader, with Will-O-Wisp destroying attacking mons on the switch, before being switched out to a defensive pokemon. Rocky Helmet is there for if it must absorb a physical hit, and will hopefully discourage another hit form a physical attacker. It completes the second part of my Defensive pivot. However at this point I am electric weak on the defensive side. Not to worry.
Ferrothorn @ Leftovers
Ability: Iron Barbs
EVs: 252 HP / 88 Defense / 168 Special Defense
The main tactic is to get Ferrothorn in asap, set up some stealth rocks then see who they switch in, and counter with an appropriate Pokemon from mine. It can also be used as a Physical wall, and is both specially and physically defensive, finishing the defensive pivot for the team. 0 IVs in speed give Gyro Ball the highest power it can get, and with STAB is a hard hitting move. Power Whip is a second STAB and there for coverage.
Volcarona @ Lum Berry
Ability: Flame Body
EVs: 252 Special Attack, 4 Special Defense, 252 Speed
Volcarona may seem a poor choice on a rain team, but after a Quiver Dance, with a +1 to Speed, Sp Atk and Sp Def, and with 100% accurate Hurricane and STABs of Bug Buzz and Heat Wave, it covers most of its flaws. If it can get a second quiver dance off, then it destroys most things in the metagame.
Now I'm happy to swap out any of these if I feel a suggestion is good enough. Currently I feel pretty electric weak, only really countering electric types with Metagross, who struggles without an Agility boost, but once it has that it hits hard and fast. My Defensive trio (quad if you count metagross who can come in and take a good hit then dish out some pain) is slightly (i.e highly) electric weak and will suffer if Ferrothorn is gone. Other than that I have a slight speed issue, with every Pokemon in the team being out sped by a majority of the metagame. So anyway, feel free to tear my team and strategy apart thanks.