How difficult would it be to have the wild Pokémon's level near the level of your team?
Example: Route 1 - Pidgey Lv 2, Your Team - Arceus Lv 98, Mewtwo Lv 95.
So with the script, it'd make the Pidgey somewhere between Lv 95-98. If you have a team of six, and they're all different levels, it'd take the highest level, and the lowest level, average them, then the wild Pokémon's levels would be that average, plus one or two higher and/or lower.