This was the enhancement from his one-star Shield Talent.
Previously, he had extrapolated the combat effectiveness of an Upper Grade Magical Artifact, enhanced by his one-star Combat Talent, by using the difference between Lower and Middle Grade Magical Artifacts as a baseline.
The actual result proved to be somewhat different from what he'd deduced.
He had overestimated the enhancement his one-star Combat Talent provided to an Upper Grade Magical Artifact.
The reason was the greater diminishing returns when moving from a Middle Grade to an Upper Grade Magical Artifact.
"Junior Brother Fang is already using an Upper Grade Magical Artifact."
"Controlling an Upper Grade Magical Artifact is much more difficult than a Middle Grade one. This is the perfect time to exploit a weakness in Junior Brother Fang's defense."
Fang Yun's defense was impenetrable when he used a Middle Grade Magical Artifact, but he might not be able to maintain that with an Upper Grade one.
