Immortality Inducer/Sandbox

These characters typically weren't born immortal, but they didn't let that stop them. They find or create an object, magical or scientific, that will grant them that which they seek.

This trope happens whenever a character is immortal through the agency of a physical object. How the object works can be very varied. It may be Powered by a Forsaken Child, thus invoking Immortality Immorality, or it could be powered by harmless Techno Babble.

The extent to which it works and what kind of Immortality it bestows also varies. It might only work on a single character, or it could work on anyone in the vicinity. It may also have negative side effects, especially if it's a prototype or created by a Mad Scientist. Said object will often be an Amulet of Dependency: they will typically lose that immortality if the object is destroyed or sometimes just if they lose contact with the object, often resulting in No Immortal Inertia.

In some cases, characters may try to merge with this item in order to gain its effects permanently. This may work, or it might backfire horribly, depending on the story and what the object is.

There are typically three forms this trope can take: the object simply existing grants them immortality, the object must be used in some way periodically to keep them immortal, or the object must be worn or carried in order to make them immortal.

Likely to be a MacGuffin or Plot Coupon. If the Immortality Inducer can be mass-produced, it may lead to a Society of Immortals.

Supertrope to Soul Jar and Heart Drive. Subtrope of Immortality.

Contrast Artifact of Death.