Beheeyem Gen5

Choice Specs Wallbreaker:

Beheeyem @ Choice Specs
Ability: Analytic
EVs: 160 HP / 252 SpA / 96 Spe
Modest Nature
IVs: 0 Atk
- Psychic
- Signal Beam
- Shadow Ball / Hidden Power [Fighting]
- Trick


Trick Room:

Beheeyem @ Life Orb
Ability: Analytic
EVs: 252 HP / 252 SpA / 4 SpD
Quiet Nature
IVs: 0 Atk / 0 Spe
- Trick Room
- Psychic
- Shadow Ball
- Signal Beam


Bulky Setup:

Beheeyem @ Leftovers
Ability: Analytic
EVs: 248 HP / 236 Def / 24 SpA
Modest Nature
- Nasty Plot / Calm Mind
- Psychic
- Signal Beam
- Recover

Going with Calm Mind means you can also go fully Physically Defensive