Through magic or science, a character manages to create a device that grants immortality. How the device 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 the user/wearer, or it could work on anyone in the vicinity. It may also have bad side effects, especially if it's a prototype or created by a Mad Scientist. 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. Likely to be a MacGuffin or Plot Coupon. Soul Jar is a subtrope. If the Immortality Inducer can be mass-produced, it may lead to a Society of Immortals. Contrast Artifact of Death.
Examples:Anime and Manga
- Bleach: the Hogyoku was originally created to eliminate the barrier between shinigami and hollow. Later, it is revealed to grant the heart's truest desires; assuming the Hogyoku is exposed to twice captain level reiatsu, and that one has the inherent potential to fulfill their wish. And then...? Aizen merged with it and was somehow granted immortality. So... either he was immortal to begin with, or had the potential to become...?
- The Grand Panacea from Baccano! has this effect. There's also lesser versions of it that grant invulnerability but not immunity to aging.
- The CCG Illuminati had the card Immortality Serum, which not only made the affected character indestructible, it could be played on an opponent's characters to make them defect!
- In Harry Potter and the Philosopher's Stone, the title object turns out to be one of these, as you might expect. It produces the Elixir of Life, which makes the drinker temporarily immortal.
- The Fountain of Youth.
- This was said to be one of the many effects of the Philosopher's Stone.
- The ultimate goal of Chinese alchemy, rather than the western "lead into gold," was to create an elixir that granted immortality.
- The Trope Namer is the +ii emitter in I Miss the Sunrise, affectionately referred to as the "immortality inducer" by some characters. It works by emitting radiation that stops cell aging, and is mass-produced, effectively making the entire human race immortal. It induces type II immortality.
- Jacob Crow in TimeSplitters achieves immortality by merging himself with one of these, or turning himself into one, it would seem. The good? He is immortal and can time-travel at will. The bad? His body is plastered to a giant bipedal mech, and he has absolutley no hands whatsoever.
- In Metal Gear Solid 4, Vamp, who previously demonstrated his immortality in Metal Gear Solid 2, is revealed to have nanomachines (what else?) in his body that enhance his already impressive natural healing abilities, making him practically immortal. Naturally, the only way to beat him later on is to inject him with a shot that supresses his nanomachines.
- The Touhou series has the famous Hourai Elixir, used by Lunarians such as Princess Kaguya and her deadly rival Fujiwara no Mokou.
- Time spores, a.k.a. "Fruits of Time", in Mnemosyne.
- In Gor, humans have type II immortality thanks to "stabilization serums" - shots - developed by the Caste of Physicians; basically, it's an immunization against old age. In one book, a woman from Earth actually gets de-aged from her 60s to age 18 or so thanks to the serum. The priest-kings, alien gods of the planet, have even more advanced stabilization serums which make them immortal until they decide to die, although they can be killed.
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