Walkthrough: Poni Plains is the largest area in all of Poni Island, with many strong Wild Pokemon and Trainers found within it. It connects to Poni Grove, Poni Meadow, and Poni Coast.
Wild Pokemon:
Initial Pokemon - Daytime (Levels 54-57): Gumshoos(30%), Petilil(20%), Pelipper(20%), Miltank(10%), Tauros(10%), Trumbeak(10%)
S.O.S. Pokemon #1 - Daytime (Levels 54-57): Gumshoos, Petilil, Pelipper, Tauros, Miltank, Trumbeak
Initial Pokemon - Nighttime (Levels 54-57): Raticate(30%), Petilil(20%), Pelipper(20%), Miltank(10%), Tauros(10%), Trumbeak(10%)
S.O.S. Pokemon #1 - Nighttime (Levels 54-57): Raticate, Petilil, Pelipper, Tauros, Miltank, Trumbeak
Initial Pokemon - Daytime (Levels 54-57): Trumbeak(30%), Gumshoos(30%), Petilil(20%), Miltank(10%), Tauros(10%)
S.O.S. Pokemon #1 - Daytime (Levels 54-57): Trumbeak, Gumshoos, Petilil, Tauros, Miltank
Initial Pokemon - Nighttime (Levels 54-57): Trumbeak(30%), Raticate(30%), Petilil(20%), Miltank(10%), Tauros(10%)
S.O.S. Pokemon #1 - Nighttime (Levels 54-57): Trumbeak, Raticate, Petilil, Tauros, Miltank
Initial Pokemon - Daytime (Levels 54-57): Gumshoos(30%), Petilil(20%), Hypno(20%), Miltank(10%), Tauros(10%), Trumbeak(10%)
S.O.S. Pokemon #1 - Daytime (Levels 54-57): Gumshoos, Petilil, Hypno, Tauros, Miltank, Trumbeak
Initial Pokemon - Nighttime (Levels 54-57): Raticate(30%), Petilil(20%), Hypno(20%), Miltank(10%), Tauros(10%), Trumbeak(10%)
S.O.S. Pokemon #1 - Nighttime (Levels 54-57): Raticate, Petilil, Hypno, Tauros, Miltank, Trumbeak
Initial Pokemon - Daytime Rusting Spots (Level 54-57): Gumshoos(70%), Hariyama(30%)
Initial Pokemon - Nighttime Rusting Spots (Level 54-57): Gumshoos(70%), Hariyama(30%)
Initial Pokemon - Daytime (Levels 54-57): Petilil(20%), Fearow(20%), Mudsdale(20%), Miltank(10%), Tauros(10%), Trumbeak(10%), Gumshoos(10%)
S.O.S. Pokemon #1 - Daytime (Levels 54-57): Petilil, Fearow, Mudsdale, Tauros, Miltank, Trumbeak, Gumshoos
Initial Pokemon - Nighttime (Levels 54-57): Petilil(20%), Fearow(20%), Mudsdale(20%), Miltank(10%), Tauros(10%), Trumbeak(10%), Raticate(10%)
S.O.S. Pokemon #1 - Nighttime (Levels 54-57): Petilil, Fearow, Mudsdale, Tauros, Miltank, Trumbeak, Raticate
Initial Pokemon - Shaking Plant Spots (Levels 54-57): Primeape(80%), Emolga(20%)
Initial Pokemon - Shaking Plant Spots (Levels 54-57): Petilil(70%), Scyther(30%)
Initial Pokemon - Flying Pokemon (Levels 54-57): Fearow(70%), Mandibuzz(30%)
Initial Pokemon - Berry Trees (Levels 54-57): Crabrawler(100%)
Trainers:
Veteran Leon - Level 59 Skarmory, Level 59 Gyarados, Level 59 Vikavolt
Hiker Ryan - Level 55 Lycanroc, Level 55 Gigalith
Ace Trainer Angela - Level 58 Cloyster, Level 59 Lurantis
Ace Trainer Cole - Level 56 Drampa, Level 57 Goodra w/Dragonium Z
Zygarde Cells: There is three Zygarde Cells found in Poni Plains.
Items:
X Defense - South of Veteran Leon
Star Piece - Northwest Cliff
Shuca Berry - Berry Tree
Rindo Berry - Berry Tree
Occa Berry - Berry Tree
Passho Berry - Berry Tree
Wacan Berry - Berry Tree
Yache Berry - Berry Tree
Maranga Berry - Berry Tree
Carbos - South of Ace Trainer
PP Max - Hidden In Front of Palm Tree
TM24 (Thunderbolt) - Northwest Cliff
TM60 (Quash) - From Ace Trainer After Defeating All Trainers