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After I went straight to the well, no one attacked me until only the last enemy remained.
My Railag was level 12 in the tournament because he fought all the time. There were serious losses, especially when breaking through the archmages guarding the arena. And there were losses when breaking through the mines as well. Therefore, the army wasn't very large, but almost entirely composed of upgraded units (only the dragons were not upgraded). As for skills, I wasn't very lucky — Railag reached level 29 by the 5th mission, but still didn't get the crucial Arcane Wave. I hope he gets it in the 6th campaign. Shadia got it almost immediately.
I agree with Nightly Edelweiss that in this mission you don't need to strive for the maximum level, because in the next mission both heroes very quickly reach their development limit. However, it is easier to start the next mission with a level 12 hero.
My Railag was level 12 in the tournament because he fought all the time. There were serious losses, especially when breaking through the archmages guarding the arena. And there were losses when breaking through the mines as well. Therefore, the army wasn't very large, but almost entirely composed of upgraded units (only the dragons were not upgraded). As for skills, I wasn't very lucky — Railag reached level 29 by the 5th mission, but still didn't get the crucial Arcane Wave. I hope he gets it in the 6th campaign. Shadia got it almost immediately.
I agree with Nightly Edelweiss that in this mission you don't need to strive for the maximum level, because in the next mission both heroes very quickly reach their development limit. However, it is easier to start the next mission with a level 12 hero.