In a minor battle, a practitioner of the Divine Passage Realm can only use three to five Divine Weapons at most. This is a consensus amongst practitioners, and using more would be considered wasteful.
The increase in combat power brought about by the number of Divine Weapons has a limit.
If you have extra wealth, it's better spent on improving your own combat power, such as enhancing your amplification secret techniques, or things like talismans that can temporarily boost your power.
Of course, this doesn't apply to the wealthy.
In the Mysterious Realm, Shen Zhui acquired a total of 178 treasures, with over sixty of them being Divine Weapons of the Fifth Rank or higher!
Divine Passage Realm practitioners usually use Fourth Rank Divine Weapons, which they can fully utilize. But adventurers who enter the Mysterious Realm will prepare one or two items surpassing their level for survival.