A small training guide for players since I see alot of questions “where to train a level x?”.
Lv. 1-10: Tiny Grotto. Lv. 11-20: Seaside Cavern. Lv. 21-30: Cliffside Cavern for Water/Grass/Fighting/Steel/Psychic/Ground types; Sour Root Cavern for all other types. Lv. 31-40: Thunderstorm Forest for Ground/Grass/Rock/Dragon types; Winden Pass for all other types. Lv. 41-50: Winden Forest for Fire types, Sauna Cavern for all other types. Lv. 51-60: Southern Sea for Water/Grass/Dragon/Flying types (Beware of Sap Sipper and Lightingrod abilities); Crystal Castle for all other types. Lv. 61+: Pretty much Southern Sea since it yields the most average experience and is easy to reach.