White Knights( MapleStory Mesos) are not often sought as party members due to their lack of party skills, the exceptions include Grims, Duals, from levels 80-1003. However, since they have tactics suited to avoiding damage and killing fast, they are gods of soloing anyway. Against an enemy which is not weak to any element, White Knights also dish out less damage than even a Crusader without Panic or Coma. This poses a difficult situation for very high leveled White Knights since the two fastest leveling spots in GMS are currently both neutral.
Training Area Level 10 - 22:
From level 10 - 22 we recommend fighting slimes to level up, and there is a map in elinia with a large number of slimes and the map is long and narrow for quick and easy kills.
Training Area Level(Maplestory powerleveling) 23 - 26:
From level 23 - 26 the mushrooms in Zipangu: Mushroom Forest. There are quite a bit of platforms here full of orange and green mushrooms, and if you are strong enough the blue mushrooms on the two platforms closest to the top of the map would be a good training choice too.
Training Area Level 27 - 35:
From level 27 - 35 the Ghost Stumps, Wooden Masks, and Rocky Masks in the Perion Excavation site. There are 3 maps for you to train on, so it should not be too difficult to find a spot.
Training Area Level 36 -44 in Maplestory:
Level 36 - 44 the Sakura Cellions in Amoria or the Jr.Grupins and Jr. Lioners in Orbis. Sakura Cellion, Jr.Grupins, and Jr.Lioners are large in numbers in these maps and there is a fast spawn for quick and easy EXP.