- For the Sword by the same name, see Tethra (Sword).
Tethra is a prominent commander in the Fomorian Army.
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Tethra makes his first appearance in Alchemy Experimentation in the Shadow World - Claimh Solas. As a Fomorian, he believes that Humans are cruel, and wishes to destroy them for their actions. He easily overwhelms the Milletian and attempts to use Life Drain on them. As the Milletian's vision begins to fade, Tethra is shown slowly walking towards the Milletian. Fallon appears, running towards the Milletian. To the Milletian, it is unknown what happens between the two of them prior to the Milletian's recovery.
Tethra is slain by the Milletian in The Finale. Before his death, he claims that the Fomor's dream-- his own dream-- is about to be fulfilled, and vanishes, never to be seen again.
- It is said that Tethra's Sword can ignore Defense completely, cutting through armor as if it were paper.