have built-in anti-piracy measures that can prevent your Pokémon from gaining experience. Ensure you are using a clean ROM or applying a proper anti-piracy (AP) patch before randomizing. 2. The Essential Tool: Universal Pokémon Randomizer (ZX)
Some randomizers offer “logical” modes that preserve game progression (e.g., ensuring necessary HMs or stat-advancing items remain obtainable), while “chaos” modes produce completely unpredictable worlds. Randomized Natures, IVs, and Abilities add further variety and strategic complexity.