As Takanuva was forced on the run and defensive as the reign of shadows began, maintaining his titan form became impractical. However, this did not mean he had to sacrifice any of the power he gained after being supercharged by Karda Nui.
Transferring a large portion of his power into the power lance, which brought him back to a more standard size, Takanuva had created the new staff “Guiding Star”. Any creature of the shadows fell before the stars light.
I have a lot of those trans studs, and thought I could use them. And thematically, it’s to show that even though he’s not a titan, the light still courses through his body
