Hacking your Pokémon to learn moves they normally can't may be frowned down upon unless the opponent agrees to do that. Also, EVs, please?
Having 2 offensive moves of the same type is generally a bad idea, unless it's for specific purposes. Politoed's stats lean towards defense or bulky offense:
-Hydro Pump
-Ice Beam
-Focus Blast
-Hidden Power (Grass)/Surf
Nature: Modest
EVs: 252 HP/252 SAtk/4 Spe
Item: Choice Specs
Ability: Drizzle
or
-Scald
-Protect/Ice Beam/Refresh
-Perish Song/Encore
-Toxic/Hypnosis
Nature: Bold
EVs: 252 HP/252 Def/4 Spe
Item: Leftovers
Ability: Drizzle
or
-Hydro Pump
-Surf
-Ice Beam
-Perish Song/Hypnosis/Encore
Nature: Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Choice Scarf
Ability: Drizzle
or
-Hydro Pump
-Ice Beam
-Hidden Power (Grass)/Focus Blast
-Hypnosis/Encore/Perish Song
Nature: Modest
EVs: 252 HP/252 SAtk/4 Spe
Item: Leftovers
Ability: Drizzle
Since this looks like a Rain team, Blaziken doesn't seem like a good fit, since its Fire STAB is weakened in the rain. However, Volcarona is an exception because it's able to learn Hurricane, which never misses in Rain:
-Quiver Dance
-Bug Buzz
-Hurricane
-Fire Blast/Substitute/Hidden Power (Water)
Nature: Modest/Timid
EVs: 252 SAtk/4 SDef/252 Spe
Item: Life Orb
What's Cinccino doing on a Rain team if you don't mind my asking? I'm not sure what you're up to here, but Cinccino gets mauled by priority in standard play. Also, this is what its set should look like; Mild doesn't benefit Cinccino in any way, since it has terrible Special Attack:
-Tail Slap
-Bullet Seed
-Rock Blast
-U-turn
Nature: Jolly
EVs: 4 HP/252 Atk/252 Spe
Item: Life Orb
Ability: Skill Link
Or you can opt for Cloyster, who also has the Skill Link ability. It can also boost its stats with Shell Smash. Like Cinccino, Cloyster gets screwed over by priority, but not as much:
-Shell Smash
-Icicle Spear
-Rock Blast
-Hydro Pump/Razor Shell
Nature: Naive/Jolly
EVs: 252 Atk/4 SAtk/252 Spe
Item: White Herb
Ability: Skill Link
Manectric isn't so good because of its lower offenses and Speed compared to Jolteon. Rotom-W is also worth considering:
Jolteon:
-Thunder
-Volt Switch
-Signal Beam
-Hidden Power (Ice)
Nature: Timid
EVs: 4 Def/252 SAtk/252 Spe
Item: Life Orb/Choice Specs
Ability: Volt Absorb
Rotom-W:
-Volt Switch
-Hydro Pump
-Will-o-Wisp
-Pain Split/Hidden Power (Ice)
Nature: Modest
EVs: 232 HP/56 SAtk/220 Spe
Item: Leftovers
or
-Volt Switch
-Hydro Pump
-Thunder Wave/Will-o-Wisp
-Pain Split
Nature: Calm
EVs: 248 HP/28 SAtk/232 SDef
Item: Leftovers
or
-Volt Switch
-Hydro Pump
-Hidden Power (Ice)/Thunder
-Trick/Thunder
Nature: Timid
EVs: 4 HP/252 SAtk/252 Spe
Item: Choice Specs/Choice Scarf
Salamence doesn't have the Sheer Force ability; its DW ability is Moxie (Bagon's is Sheer Force, which becomes Overcoat as Shelgon, then Moxie as Salamence). Given its stats, it's better for it to have Dragon Dance + 3 offensive moves rather than Dragon Dance + support move + 2 offensive moves:
-Dragon Dance
-Outrage
-Earthquake
-Hydro Pump
Nature: Naive
EVs: 252 Atk/4 SAtk/252 Spe
Item: Life Orb/Lum Berry/Yache Berry
Ability: Intimidate/Moxie
A Jolly nature ruins Suicune's offensive prowess. It also faces competition with other bulky Waters like Slowbro and Jellicent. Just to be safe against opposing rain teams, you can add in Ferrothorn to help against them:
-Spikes/Stealth Rock
-Leech Seed
-Power Whip
-Gyro Ball/Thunder Wave/Protect
Nature: Relaxed
EVs: 252 HP/88 Def/168 SDef
Item: Leftovers/Shed Shell
