Alakazam @ Leftovers  
- Psychic  
- Encore  
- Recover  
- Barrier  

Marowak @ Thick Club  
IVs: 14 HP / 24 Atk / 26 Def  
- Swords Dance  
- Bonemerang  
- Rock Slide  
- Hidden Power [Flying]  

Raikou @ Leftovers  
- Thunderbolt  
- Rest  
- Crunch  
- Thunder  

Alakazam secures wins versus almost every physical attacker with the combo of Barrier + Encore.
Marowak beats electric types like Crunch Raikou and Magnet Zapdos that threaten Alakazam. It also covers Blissey, Heracross, Steelix, and Tyranitar.
Raikou beats opposing Alakazam with Crunch and naturally covers water types like Suicune that threaten Marowak. Rest is used to beat Toxic users, and Thunder maxes out damage. Alternatively, Protect offers increased healing from Leftovers.