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The names and properties of the skills have been changed. Otherwise, I haven't fully figured it out yet. I think it works like this: for each level, you can learn one spell or enhance the effect of an already learned one. For example, you have access to a second-level fireball. Upon gaining another level, you can learn, say, a first-level ice arrow, or upgrade the fireball to the fourth level. It's a simple skill distribution system. I think... :D
Бог есть любовь