When Catt enters the planet's core, named "Planet's Song" in my world, she is able to absorb a lot of magi. This causes her to become a Vox herself, and she is the Vox of the Pure White Essence. Her abilities entail shooting beams of white light that have jewels circling them toward a foe. It usually has a melting or burning effect, like having acid thrown at you. The power is very sensitive and difficult to control without a lot of focus.

Accompanying Fic:
Part 1
Part 2