Walkthrough: After defeating Dexio, you can head on in to Poni Grove. This path is small with very few trainers, but there are many wild Grasses with numerous Wild Pokemon.
Wild Pokemon:
Initial Pokemon - Daytime (Levels 52-55): Trumbeak(30%), Gumshoos(30%), Granbull(20%), Riolu(10%), Pinsir(10%)
S.O.S. Pokemon #1 - Daytime (Levels 52-55): Trumbeak, Gumshoos, Granbull, Lucario, Pinsir
S.O.S. Pokemon #2 - Daytime (Levels 52-55): Trumbeak, Gumshoos, Granbull, Riolu, Pinsir
S.O.S. Pokemon #3 - Daytime (Levels 52-55): Trumbeak, Gumshoos, Granbull, Chansey, Pinsir
S.O.S. Pokemon #4 - Daytime (Levels 52-55): Trumbeak, Gumshoos, Granbull, Riolu, Pinsir
Initial Pokemon - Nighttime (Levels 52-55): Trumbeak(30%), Raticate(30%), Granbull(20%), Riolu(10%), Pinsir(10%)
S.O.S. Pokemon #1 - Nighttime (Levels 52-55): Trumbeak, Raticate, Granbull, Lucario, Pinsir
S.O.S. Pokemon #2 - Nighttime (Levels 52-55): Trumbeak, Raticate, Granbull, Riolu, Pinsir
S.O.S. Pokemon #3 - Nighttime (Levels 52-55): Trumbeak, Raticate, Granbull, Chansey, Pinsir
S.O.S. Pokemon #4 - Nighttime (Levels 52-55): Trumbeak, Raticate, Granbull, Riolu, Pinsir
Trainers:
Black Belt Roy - Level 56 Crabominable
Ace Trainer Jackson - Level 55 Bruxish, Level 56 Marowak, Level 56 Braviary
Zygarde Cells: There is two Zygarde Cells found in Poni Grove.
Items:
X Sp.Atk - Southern Grasses
Max Potion - Left of Black Belt Roy