Here are two Stored Power sets: Defensive Inclined and Offensive Inclined
Defensive Inclined
Ability: Magic Guard
Nature: Calm (+SpD, -Atk)
EVs: 252 HP, 252 SpD, and 4 Def
Item: Flame Orb
- Stored Power
- Psycho Shift
- Roost
- Cosmic Power
Offensive Inclined
Ability: Magic Guard
Nature: Bold (+Def, -Atk)
EVs: 252 HP, 252 Def, and 4 SpD
Item: Flame Orb
- Stored Power
- Psycho Shift
- Roost
- Calm Mind
The point of these sets is to pass the burn from Flame Orb to your opponent. Then you start using either Calm Mind or Cosmic Power. When low on HP use Roost to heal. Then use Stored Power to finish the opponent. The only recommendation is to have a Fighting type on your team to cover the Dark types that these sets can't defeat.