Most battles from pre-DP didn't really make sense if you follow game lore. Even AG's battles have more in common with Kanto/Johto's than anything later. Also remember normal type moves would sometimes work on ghost pokemon in AG like Glalie headbutting Misdreavous.
Most of the Hoenn Gyms had Ash use the opposite type match ups that would have been good for it. Grovyle and Corphish would have been super effective against Tate/Liza for example.
Most of the Hoenn Gyms had Ash use the opposite type match ups that would have been good for it. Grovyle and Corphish would have been super effective against Tate/Liza for example.