In reality, if we were to discuss this seriously, who among the Gods of the Divine Realm would only specialize in one rule? Most deities practice at least two to three different rules. Some greedy existences, regardless of the tactics they employed, have cultivated hundreds of rules, while a few have practiced over a dozen rules.
It is naturally impossible to cultivate such a vast number of rules to a high Realm. In fact, those deities cultivated so many rules at that time because it was necessary to use a specific rule on certain occasions. If only one rule were practiced, they often couldn't cope with urgent matters depending solely on their primary rule.
Thus, prompted by their own experiences, the Gods in the Divine Realm often prefer to learn several rules. However, regardless of how many rules are cultivated, their main practice at that time was generally focused on just a single rule.
