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Ossir calls! We muster the troops (upgrading archers to the second tier), find a memory mentor (if one is available on the map), level up the special skill, add a mega-charged ballista to the skills, and also add knowledge. We collect artifacts and a necklace that boost magic and defense as much as possible, preferably to level four of the racial skill (I don't remember the name, I haven't played in a while). Don't forget about the guild of avengers... Let's go! The psycho is ready! Seven consecutive meteor showers (the ballista's turn after the hero's turn) will turn everything into mincemeat!