- Chinese: 鎖瑪利亞
- Pinyin: Suo Ma Li Ya
A device invented by John to permanently neutralize an individual's martial arts skills and powers. Its size is small as an insect and automatically neutralizes someone's powers once it had been inserted into a person's brain.
It requires a remote to remove its hold on the individual. Over 2000 people have had their powers sealed by this device. Zhao Yun was the first to have his powers restored by de-activating the device.
It was invented to seal away the fighting skills of John's wife, Maria.
A password is required to remove the device's hold on the individual. The password is found out to be "John Loves Maria" (約翰愛瑪利亞).