As soon as the words left his mouth, John directly altered the values on the spot.
[Duration: 0.5 seconds → Duration: 1 hour!]
[Area of effect: 1 meter → Area of effect: 500 meters!]
The moment he confirmed the changes, a ray of golden light appeared in his hand and sank into the contract.
In an instant, the previously unremarkable Anti-Magic Seal began to fill with dense, intricate magic patterns.
All the parts the headmaster had failed to complete were instantly perfected and further improved.
The Anti-Magic Seal's revised stats became:
[Anti-Magic Seal]
[Quality]: SSS
[Effect]: A one-time-use item. Upon activation, it nullifies all magic-type abilities within a 500-meter radius for 1 hour!
…
John made no effort to hide the modification process from the headmaster.
The old man watched the changes to the Anti-Magic Seal with his own eyes.
His eyes widened in disbelief. "Y-you… how did you do that?"
Even his breathing grew hurried.
