Grumpig @ Mago Berry  
Ability: Thick Fat  
EVs: 252 HP / 80 Def / 176 Spe  
Timid Nature  
IVs: 0 Atk  
- Psychic  
- Focus Blast / Shadow Ball  
- Substitute  
- Recycle  

Grumpig @ Leftovers  
Ability: Thick Fat  
EVs: 80 HP / 252 SpA / 176 Spe  
Timid Nature  
IVs: 0 Atk  
- Psyshock / Psychic
- Shadow Ball / Focus Blast 
- Substitute
- Calm Mind
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Optional Move(s):  
- Heal Bell
- Protect
- Signal Beam
- Taunt
- Thunder Wave
- Toxic
Optional Item(s):  
- Colbur Berry
- Fightinium Z
- Normalium Z 
Optional Ability:  
- Gluttony
Optional EV/IV(s):  
- 252 HP / 36 Def / 124 SpD / 96 Spe (Calm)
- 160 HP / 252 SpA / 96 Spe (Modest)