ITT: We pimp teams of Rivals/E4/Gym Leaders/Champions/Bosses, try to keep a balance between going full smogon and how game freak would do it, such as not just carelessly sticking choice items or life orbs on things and try to not repeat items, also with early gym leaders, you can either fix their rematch teams or playthrough teams or both, if it's their playthrough teams, keep the amount of pokemon they have the same

Cynthia

Umbreon @ Leftovers: Synchronise
-Toxic
-Wish
-Protect
-Payback

Roserade @ Black Sludge: Natural Cure
-Sludge Bomb
-Energy Ball
-Attract
-Stun Spore

Togekiss @ Sharp Beak: Serene Grace
-Air Slash
-Thunder Wave
-Aura Sphere
-Roost

Garchomp @ Muscle Band: Sand Veil
-Dragon Claw
-Earthquake
-Fire Fang
-Stone Edge

Lucario @ Metal Coat: Steadfast
-Close Combat
-Extremespeed
-Bullet Punch
-Swords Dance

Milotic @ Shell Bell: Marvel Scale
-Surf
-Ice Beam
-Mirror Coat
-Recover

Imagine dealing with that on your first Platinum playthrough as a 10 year old