Andre
Nature: Hasty
Type: Fire/Electric
HP: 65
Atk: 100
Def: 60
SpAtk: 110
SpD: 60
Spe: 135

Selena
Nature: Calm
Type: Water/Poison
HP: 90
Atk: 55
Def: 90
SpA: 100
SpDef: 135
Spe: 60

Evie
Nature: Naughty
Type: Ice/Dark
HP - 70
Atk - 135
Def - 70
Sp.Atk - 80
Sp.Def - 55
Speed - 120

Jayden
Nature: Impish
Type: Water/Ground
HP: 90
Atk: 95
Def: 130
SpA: 50
SpDef: 80
Spe: 85

Dante
Nature: Lonely
Type: Fire/Dark
HP: 70
Atk: 120
Def: 70
SpA: 110
SpDef: 70
Spe: 90

Mira
Nature: Naive
Type: Grass/Electric
HP: 60
Atk: 80
Def: 60
SpAtk: 135
SpD: 70
Spe: 125

Cisrian 
Nature: Quiet
Type: Poison/Dark
HP - 70
Atk - 80
Def - 120
Sp.Atk - 100
Sp.Def - 90
Spe - 70

I have no clue what to do with Cisrian. :/ I'll do the 600 BST ones later

Andre: Jolteon/???/Mega Manectric
Selena: Milotic/Diancie or Meloetta/Mega Venusaur
Dante: Blaziken or Lucario/Salamence or Genesect/Mega Charizard X
Jayden: Carracosta/Zygarde/Mega Scizor
Evie: Weavile/???/???
Mira: Espeon/Darkrai/???
Cisrian: ???/???/???

Am I the only one that thinks Lucario also works for Dante? Most likely...