The fact that I didn't reach the development limit in this mission isn't a big deal, because in the next mission, there will be an opportunity to reach the development limit for both heroes. Both of them need to be leveled up as much as possible and taught all the high-level spells (there's a treasure trove of mages and a utopia of dragons), because the 3rd mission isn't very easy even in version 1.0. In version 1.5, it was made much more difficult. My Railag and Shadia learned all the chaos spells, and Shadia also learned the darkness spells.
The fact that I didn't reach the development limit in this mission isn't a big deal, because in the next mission, there will be an opportunity to reach the development limit for both heroes. Both of them need to be leveled up as much as possible and taught all the high-level spells (there's a treasure trove of mages and a utopia of dragons), because the 3rd mission isn't very easy even in version 1.0. In version 1.5, it was made much more difficult. My Railag and Shadia learned all the chaos spells, and Shadia also learned the darkness spells.