Lunala @ Lunalium Z  
Ability: Shadow Shield  
EVs: 244 SpA / 12 SpD / 252 Spe  
Timid Nature
- Calm Mind
- Moongeist Beam
- Psyshock
- Focus Blast / Moonblast
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Lunala @ Ghostium Z  
Ability: Shadow Shield  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest / Timid Nature  
IVs: 0 Atk  
- Trick-or-Treat  
- Moongeist Beam  
- Psystrike  
- Focus Blast / Moonblast
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Lunala @ Choice Scarf
Ability: Shadow Shield
EVs: 252 SpA / 4 SpD / 252 Spe
Modest / Timid Nature
- Moongeist Beam
- Focus Blast
- Ice Beam
- Psystrike
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Optional Move(s)
- Trick
- Lunar Dance
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Lunala @ Leftovers
Ability: Shadow Shield
EVs: 148 HP / 160 Def / 200 Spe
Timid Nature
- Moongeist Beam
- Roost
- Defog / Spectral Thief
- Toxic / Will-O-Wisp
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Optional Move(s):
- Ice Beam  
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Overview:
Lunala is a threatening sweeper with great set-up opportunities thanks to its Shadow Shield. This ability will ensure it can pose a threat to many teams while also blanket check a lot of dangerous pokemon despite its rather poor defensive typing. However, it relies on its ability being intact, moreso against offensive team, leaving it vulnerable to all forms of residual damage such as Stealth Rock and Toxic. It is also forced out by pokemon that can OHKO it through Shadow Shield such as Yveltal and Marshadow.