My first one of these, so my descriptions of each pokemon and their roles may be a bit mediocre.
Hippowdon @ Leftovers
Trait: Sand Stream
EVs: 252 HP / 244 Def / 12 SDef
Impish Nature
IVs: 30 Atk / 30 Def
- Earthquake
- Slack Off
- Stealth Rock
- Ice Fang
Primarily holds the function of a physical wall; however, due to it's relatively high attack base stat, it can deal a decent amount of damage, as well. Contemplated making it a mixed well, but decided against it, which shall be explained below.
Garchomp @ Choice Band
Trait: Rough Skin
EVs: 4 HP / 252 Atk / 252 Spd
Jolly Nature
- Outrage
- Earthquake
- Fire Fang
- Dragon Claw
The primary sweeper of the team. Not much to say that can't be told by it stats; it already massive attack stat combined with Choice Band with the STAB of Outrage, makes for an excellent combination.
Espeon @ Light Clay
Trait: Magic Bounce
EVs: 252 HP / 4 Def / 252 Spd
Timid Nature
- Reflect
- Light Screen
- Psychic
- Hidden Power [Fire]
The primary support poke in the team. Generally, it's used as the lead to use reflect and light screen at the start of the battle to give other pokes an increase in defense.
Cloyster @ Life Orb
Trait: Skill Link
EVs: 252 Atk / 252 Spd / 4 SAtk
Naive Nature
- Shell Smash
- Icicle Spear
- Rock Blast
- Hydro Pump
Not sure exactly what function this would usually go into, however, it's Skill Link with Shell Smash and Icicle Spear, though not very strong, can easily wear down most pokes.
Salamence @ Choice Scarf
Trait: Moxie
EVs: 252 Atk / 4 SAtk / 252 Spd
Naive Nature
- Outrage
- Dragon Claw
- Earthquake
- Fire Blast
The secondary sweeper of the team. Can do nearly the same amount of damage as Garchomp with Outrage, so one getting taking out with the other still in play, isn't as crippling as it normally would be.
Jellicent @ Leftovers
Trait: Water Absorb
EVs: 252 HP / 36 Def / 220 SDef
Calm Nature
- Scald
- Recover
- Toxic
- Shadow Ball
The secondary supporter and status inflictor. Again, not much to say. It's STAB with scald is rather good, as it deals a decent attack *with* the chance to burn the target. Likely to be used after the Reflect/Light Screen combination. Also, due to Hippowdown serving as the physical wall of the team, this holds the function of special wall.