Leveling up your Pokémon efficiently is key to overcoming challenges. Here are some tips:
- Exp. Share: The Exp. Share (Key Item) distributes experience to all Pokémon in your party, even if they didn't participate in battle. This is excellent for leveling up weaker Pokémon or those you want to keep in reserve.
- Lucky Egg: A held item that boosts experience gained by 50%. You can obtain one from a trainer in the Grand Underground after showing him a specific Pokémon.
- Trainer Rematches: Use the Vs. Seeker (obtained on Route 207) to challenge previously defeated trainers to rematches. Their Pokémon will be stronger, offering more experience and money.
- Grand Underground: Pokémon in the Grand Underground often give good experience, and you can find specific Pokémon that yield desired EVs.
- Eterna Forest with Cheryl: Early in the game, Cheryl's Chansey heals your Pokémon after every battle in Eterna Forest, making it a safe place to grind experience.
- High-Level Wild Pokémon: Later in the game, areas like Victory Road and the post-game routes (e.g., Route 224, 225) offer high-level wild Pokémon for training.
Combine these methods to quickly power up your team for the toughest battles.