Hey /vp/, was wondering if I could get some help with my team. Been trying to whip up a team, but testing my current idea on Showdown is only getting me minor success. Any suggestions would be appreciated.

Garchomp@Life Orb
Jolly, Rough Skin
252 Atk/Spe, 4 SpD
Outrage, Earthquake, Swords Dance, Poison Jab

Chansey@Eviolite
Bold, Natural Cure
252 HP/Def, 4 SpD
Softboiled, Thunder Wave, Ice Beam, Aromatherapy

Celesteela@Leftovers
Impish, Battle Boost (Def)
252 HP/Def, 4 Atk
Toxic, Leech Seed, Protect, Heavy Slam

Metagross@Metagrossite
Jolly, Clear Body (Tough Claws)
252 Atk/Spe, 4 SpD
Zen Headbutt, Earthquake, Bullet Punch, Meteor Mash

Greninja@Choice Specs
Timid, Battle Bond
252 SpA/Spe, 4 HP
Water Shuriken, Dark Pulse, Ice Beam, HP: Fire

A.Marowak@Thick Club
Adamant, Lightning Rod
251 Atk, 248 HP, 8 SpD
Will O' Wisp, Bonemarang, Flare Blitz, Shadow Bone