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The question isn't quite formulated correctly in general. Skills are presented as a choice, meaning you have to choose one out of two. As a result, approximately half of the skills will be better than tactics (Attack, Weaponsmith, Earth Magic, and probably Air Magic, etc.), another part is debatable and depends on the game and the hero (because there are games where water and fire are needed, or if there are three stacking effects, then Accuracy isn't so bad). And then there are those that are definitely worse, such as Scouting, Navigation if there's no water, and often Mysticism. So, the conclusion is that it's a decent, solid skill that, if it takes up a slot, won't ruin anything in most cases and won't sink the hero. But it's definitely not an overpowered skill and can't be compared to Logistics, Attack, or Weaponsmith, etc.