All-Physcial
Water Veil w/ Muscle Band (Note: I chose this ability because Flame Body affects physical-users)
Adamant w/ 252 Attack, 252 Speed, 6 HP
Waterfall
Crunch
Ice Fang/Ice Punch
Brick Break
All-Special
Swift Swim w/ Wise Glasses/Choice Specs/Choice Scarf
Modest w/ 252 Sp Attack, 130 Speed, 128 HP
Scald/Hydro Pump
Ice Beam/Blizzard
Focus Blast
HP (Fire/Dark/Rock/Flying/Ghost)
Mixed
Swift Swim w/ Life Orb/Lum Berry
Lonely/Naughty w/ 252 Attack, 130 Speed, 128 Sp Attack
Scald
Crunch
Ice Fang
Brick Break/Rock Tomb/Focus Blast
Partners
Rain Dance-users if Swift Swim.
Safeguard-users if Swift Swim.
Tailwind-users if Water Veil.
Countering
Will-o-wisp users like Dusknoir, Cofagrigus, Weezing, Spiritomb, or Mow/Wash Rotom.
High Defense pokemon like Ferrothorn, Metagross, or Leafeon.
Trick Room-users.