Walkthrough
After receiving the Pokedex from Sonia, you will need to head north of Wedgehurst on Route 2. As you enter the path, Leon will actually show you how to catch Pokemon and will then gift you will a nice supply of Poke Balls. The goal now is to reach Professor Mangolia's House at the end of Route 2. Of course, there are plenty Wild Pokemon waiting to be captured and loads of trainers looking to battle on your way there. Later in the game, you will be able to reach the other side of the lake with the help of your Bike and Rotom Phone Update.
Wild Pokemon - Main Path
Skwovet (38%): Levels 5-7
Rookidee (30%): Levels 5-7
Nickit (15%): Levels 5-7
Chewtle (10%): Levels 5-7
Yamper (5%): Levels 5-7
Galarian Zigzagoon (2%): Levels 5-7
Blipbug (40%): Levels 4-6
Rookidee (25%): Levels 4-6
Seedot(Sword)/Lotad(Shield) (20%): Levels 4-6
Purrlion (10%): Levels 4-6
Hoothoot (5%): Levels 4-6
Special Overworld Encounters:
Chewtle: Level 8
Yamper: Level 8
Fishing:
Magikarp (80%): Levels 4-6
Chewtle (15%): Levels 4-6
Arrokuda (20%): Levels 4-6
Wild Pokemon - Lake
Waters:
Arrokuda (70%): Levels 38-40
Barraskewda (28%): Levels 38-40
Gyarados (2%): Levels 38-40
Special Overworld Encounters:
Drednaw: Level 50
Lapras: Level 55
Wild Pokemon - Lakeside
Galarian Zigzagoon (50%): Levels 40-43
Blipbug (30%): Levels 40-43
Nickit (15%): Levels 40-43
Yamper (5%): Levels 40-43
Gossifleur (35%): Levels 37-40
Purrlion (30%): Levels 37-40
Seedot(Sword)/Lotad(Shield) (20%): Levels 37-40
Blipbug (10%): Levels 37-40
Chewtle (5%): Levels 37-40
Special Overworld Encounters:
Obstagoon: Level 50
Fishing:
Magikarp (59%): Levels 37-40
Chewtle (40%): Levels 37-40
Feebas (1%): Levels 37-40
Trainers
Youngster Jake: Level 6 Skwovet
Lass Lauren: Level 6 Chewtle
Youngster Benjamin: Level 5 Blipbug, Level 7 Nickit
Items
Poke Balls (Main Path): From Leon
Potions (Main Path): Near Youngster Jake
Poke Balls (Main Path): On Eastern Ledge
Repel (Main Path): Eastern Grass Patch
TM57 (Main Path): Behind Magnolia's House
Choice Band (Main Path): Hidden Down River
Great Ball (Main Path): West Of Magnolia's House
Fresh Water (Main Path): Hidden In Magnolia Flower Pot
Rare Candy (Lake): Hidden Near Tree On Middle Island
PP Max (Lake): Middle Lake
TM69 (Lakeside): Western Alcove
Psychic Seed (Lakeside): Eastern Land Accessible By Lake
Water Stone (Lakeside): Hidden Near Bridge In Middle Of River
Max Ether (Lake Side): Hidden Near Northwest Bushes