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As a former longtime AG player who watched as the tier got ripped apart by vivillon HO, I'd like to propose:
:vivillon-fancy: mid->high tier top. See edit below.
Vivillon-Fancy @ Petaya Berry
Ability: Compound Eyes
Tera Type: Flying
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
-...
I'm gmt -5... This might get hard. We're 11 hours apart and both have school, so the easiest way to do this is our morning/night. That should work best on weekends... how does your Sunday 10 AM (My Saturday 9 PM) work for you?