[Sixth-Rank Crystal Core·Aquatic Breath]
[Quality: Epic (100%)]
[Purity: 25% (Side effect: Some parts of the body will grow fish scales)]
This crystal core's ability is quite underwhelming. With no end to the zombies on land, there's no way I'd go looking for trouble underwater. Even if there were zombies or monsters underwater, any sane person would draw them out instead of going down to fight them head-on.
So for now, these crystal cores are of no use. The Aquatic Breath crystal core Wang Tao obtained earlier is still in his Space Backpack.
As for [Water Attribute Enhancement], [Water Attribute Defense], and [Water Attribute Attack], those are all new to Wang Tao.
[Sixth-Rank Crystal Core·Water Attribute Enhancement]
[Quality: Epic (100%)]
[Purity: 25% (Side effect: Body stiffness)]
[Water Attribute Enhancement: Passive Ability, enhances water attribute damage]
...
[Sixth-Rank Crystal Core·Water Attribute Defense]
[Quality: Epic (100%)]