Hi, I'm just a novice that made a new team in to play with my friends.
From lots and lots of experiments from PWT and Battle Subway, I found this team the most useful.
Please bare with me, because it might look like some sort of trash:
First:
Nature: Adamant
Ability: Moxie (Thinking about replacing with Intimidate)
EV: 252 Health, 128 Defense, 128 Special Defense
Item: Sitrus Berry
Moves:
Crunch (STAB, chance to lower Defense)
Dragon Dance (bulky enough to set up, destroy everything in its path)
Ice Punch (Deals with Flying types as well as Dragons)
Drain Punch (Regain all health that was lost during Dragon Dances)
Second:
Nature: Impish
Ability: Poison Heal
EV: 252 Health, 252 Defense, 4 Special Defense
Item: Toxic Orb
Moves:
Earthquake (...)
Protect (Stall #1)
Roost (Stall #2)
Toxic (Stall #3)
Third
Nature: Modest (I really wanted to get Calm but I just gave up after endless attempts)
Ability: Water Absorb
EV: 252 Health, 252 Special Defense, 4 Defence
Item: Leftovers
Moves:
Recover (CANCER)
Will - O - Wisp (Allows Jellicent to deal with physical attackers)
Hex (works insanely well with Will - O - Wisp)
Surf / Scald / Hydro Pump (Please recommend me which to choose.)