Chibaku Tensei: Pulsar

Activating Star Chakra Mode, Shiena infuses Fire Release chakra and Amaterasu into a Chibaku Tensei core, multiplying its gravitational force by ten. Due to this, the resulting gravitational force is powerful enough to instantly turn any matter into plasma. She then creates another gravitational force inside of the growing star to ignite high-speed fusion reactions. Once enough, she detonates the star, creating a mini supernova, a HIGHLY controlled explosion. From the remnants, she adds more chakra to get it spinning at high speeds, sparking jets of radiation that can disrupt DNA in any organism except for Shiena as her Star Chakra Mode lazily brushes away radiation.

Drawbacks
This technique needs time and a LOT of chakra to complete. Shiena is left drained after using it once.

Trivia

 * After observing Kintaro's Chibaku Tensei: Stellar Origin, Shiena came up with this variation of it.