Katharterio Salamandra

 (lit. Purgatory Salamander) is the Noble Art of Stella Vermillion.

Description
Stella transforms Laevateinn into a sword made from heat with no physical body, and can reach a target more than a hundred meters away. After Stella's soul evolved, the technique became far more powerful, being able to cut a mountain in half.

Weakness
Activating the technique requires some time, making it ineffective during quick exchanges. The technique also requires a significant amount of magic.