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
- The name Promethium is probably derived from the name of the Prometheans, warriors from clay seen in Greek mythology.
- It could also come from the titan Prometheus in Greek mythology who famously gave fire to mankind.
- In real life, Promethium is a radioactive chemical element.
- In real life, Promethium is a beta radiation source for thickness gauges.
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