Promethium is a Tier 10 metal that can only be obtained while Dungeoneering. This is the highest smithable Tier available. This may refer to the following:
Trivia
- In real life, Promethium is a radioactive chemical element and a beta radiation source for thickness gauges.
- Promethium may be a reference to the Greek titan Prometheus, a champion of mankind, known for his wily intelligence, who stole fire from Zeus and gave it to mortals.
- Promethium may also be a reference the DC universes Deathstroke who use a promethium bade.
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