Worlds of Magic: Planar Conquest (JP)

A very straightforward trophy that is similar to Zero to Hero. Heroes and Champions are able to gain a maximum of 10 levels from where they start. Heroes start at level 5 and Champions start at level 7.

During the game configuration screen of the Sorcerer Lord there are perks that you can select. If you select the Warlord perk then this means your heroes/champions can gain an additional 2 levels. This does directly affect this trophy as you will be required to fill out these 2 extra levels.

To summarize, you normally need to raise a Hero from level 5 to 15 or a Champion from level 7 to 17. If you have the Warlord perk then you must raise a Hero from level 5 to 17 or a Champion from level 7 to 19.

There is a Crusade spell that also can raise one more level but I do not think that it affects this trophy. In other words, the absolute maximum is really 20 but that is more for trivia then for this trophy.

The trophy will immediately unlock once your Hero or Champion reaches their maximum level.