Magikarp-Mega

Klefki @ Eject Button
Ability: Prankster
Level: 50
EVs: 252 HP / 76 Def / 180 SpD
Calm Nature
IVs: 0 Atk
- Foul Play
- Reflect
- Light Screen
- Thunder Wave

Mimikyu @ Mago Berry
Ability: Disguise
Level: 50
EVs: 244 HP / 12 Def / 252 SpD
Careful Nature
- Shadow Claw
- Will-O-Wisp
- Curse
- Trick Room

Togekiss @ Fightinium Z
Ability: Serene Grace
Level: 50
EVs: 4 HP / 252 SpA / 252 Spe
Timid Nature
IVs: 0 Atk
- Air Slash
- Fire Blast
- Aura Sphere
- Nasty Plot

Mawile-Mega @ Mawilite
Ability: Intimidate
Level: 50
EVs: 252 HP / 252 Atk / 4 Def
Adamant Nature
- Play Rough
- Sucker Punch
- Fire Fang
- Swords Dance

Primarina @ Primarium Z
Ability: Torrent
Level: 50
EVs: 252 HP / 4 Def / 212 SpA / 36 SpD / 4 Spe
Modest Nature
- Sparkling Aria
- Moonblast
- Aqua Jet
- Hidden Power [Fire]

Slurpuff @ Sitrus Berry
Ability: Unburden
Level: 50
EVs: 68 HP / 252 Atk / 188 Spe
Adamant Nature
- Play Rough
- Drain Punch
- Thief
- Belly Drum