Skills like Windmill, Combat Mastery, Magic Bolts, Ranged Mastery, and many more have certain requirements that need to be met before you can enhance it to the next rank. Although the first letter of the team, more readily available, the number of teams began to pose a challenge in Matial Empires.
While this list seems not too challenging at first glance, Average wind up five, they will find it very difficult to face the boss type monsters in game, they can be easily done. For example, we must personally be difficult to run the Cairo dungeon settings, and find a dark magic to complete as a boss type, because a regular Golem is considered Awful for us. To finish 450 of these Dark Golems would take a ridiculously long time.