"For actual battles… The most important thing to focus on would be the weak points. The weak points I'm speaking off aren't just the simple flaws of a person, but rather, it's the difference in ability between you and your opponents in different aspects. You may have a high speed, but if your opponent has a faster speed than you, then your speed would still be a weak point in that particular battle. Similarly, if you have enough strength, but your current opponent is still stronger than you, then even if your strength was your best attribute, it would still be a weak point, and vice versa. Thus, in a duel, the most important key is to test out the waters first, trying to measure your opponent's average stats and how it compares to yours. Then, using this information, you can maximize your advantages over them to target their weak points. In theory, this is common sense, but it's not as easy as one might think in actuality."