Name of the spell she's got there in her hand. It modifies the effects of space around the target and causes them to feel pain. Yeah, Catt has her own magic too; not just the [Vox of the Goddess].
Sometimes she can kinda concoct a spell based on an earned Vox after she uses it a bit and gets used to it's [Magiflow]. If they're compliant with her magical forte (Void Mage) she can. Likewise, Dawn and Dusk mages can learn their chosen path from Vox she earns if they're around when she Summons them.

Vox lead to the path of Magic.
Follow the one who chases the Song
Follow and you will find what you seek
She sings with not her own voice
but the Voice of the Goddess
and her Vox Guardians

IDK man, I really like drawing magic. Working on another tattoo design for her and I to eventually share. I might have it loop around her back and then her opposing hip. Still playing with it.
No, the shit in her eye isn't the tattoo, that's just paint.