The Tzun Stormblade was a type of Tzun spaceship which featured graviton shielding and terullian hulls. They were vulnerable to the Veltrochni Quantum lance weapon. (PROSE: The Dark Path)

A damaged Tzun Stormblade was in the possession of the Sontarans, who hypnotised the humans of the Indra system to repair it, including its graviton drive. When the repairs were complete, they planned to lure the Rutan into the Indra system, and then drive the Stormblade into the condensed atmosphere of Indra, achieving nucleosynthesis and wiping out the Rutan fleet. (PROSE: Lords of the Storm)

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