Death by necrosis/gangrene upon other's hand touch

Suppose that a person has the ability to kill any living being it touches (literally). That happens due to the fact that when this person touches using such ability, the target's spot being touched starts to become necrosis/gangrene and spreads to the whole body in seconds, and finally causing the death of the touched one.

This person's hand has no visible anomalies and the necrosis on touch only happens voluntarily, i.e., touching normally or someone touching this person has no effect.

With that, what would be the possible implications? What would be necessary so that this necrosis/gangrene results in death, and so fast, and allowing to control when it functions or not?

posted about 8 years ago

Yuuza‭

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