Abomasnow@Abomasite
Snow Warning
Quiet 252 HP/4 Atk/252 SpA (0 Spe IV)
Blizzard
Giga Drain
Ice Shard
Leech Seed
Chandelure@Leftovers
Flash Fire
Quiet 252 HP/252 SpA/4 SpD (0 Spe IV)
Trick Room
Fire Blast
Shadow Ball
Energy Ball
Jellicent@Leftovers
Water Absorb
Bold 252 HP/252 Def/4 SpD
Scald
Will-O-Wisp
Recover
Taunt
Basically, this is a bulky offensive Trick Room core centered around Chandelure and Abomasnow. The two cover eachother's weakness fairly well, with Chandelure taking Bug, Steel, Fighting, and Fire attacks aimed at Abomasnow, and Abomasnow sponging Water and Ground attacks for Chandelure. The two provide ample switch in opportunities for the other, and will wear down opposing special walls quickly, with 100% accurate Blizzards and somewhat less accurate Fire Blasts coming off of two gargantuan Special Attack stats. Jellicent is there because the two are really weak to Keldeo, Terrakion, and Talonflame, which Jellicent can check pretty well. It also creates a F/W/G core. For more offensive teams, Azumarill could probably be run in place of Jellicent, but I think Jellicent is a much safer option. This core should be supported by hazard control, as keeping opposing hazards away from Abomasnow and Chandelure, especially Stealth Rock, is essential for their longevity, with both of them being weak to it. Also, your own Stealth Rock user would be very beneficial, as both Chandelure and Jellicent can spinblock effectively. Additionally, checks should be added for Gengar and Hydreigon, who with their coverage moves, can hit all members of this core Super-Effectively. The EVs are tentative- I'm sure better spreads could be made, but I'm too lazy to make some.