MexicanDuckwithaPineappleonitsHead (Ludicolo) @ Choice Specs/Life Orb/Lefties
Trait: Swift Swim/Rain Dish
EVs: 252 HP / 252 SpA / 4 Spe
Modest Nature (+SpA, -Atk)
- Hydro Pump
- Giga Drain
- Ice Beam
- Focus Blast/Rain Dance
Hydro Pump is good STAB.
Giga Drain provides healing and is STAB as well.
Ice Beam gives great coverage along the dual STAB moves.
Focus Blast hits Ferrothorn.
If you're not playing in OU though, Rain Dance is an alternative to boost Ludicolo's Speed and Hydro Pump.
If using Rain Dance, a spread of 4 HP / 252 SpA / 252 Spe is viable.
Also, you can use the first EV spread with Rain Dish, still maintaining the Tank Role.
Of course if using Rain Dance, go with Life Orb or Lefties.
If in OU and using Focus Blast though, Choice Specs is viable to hit hard.