Truth in Lies Development Materials Fenrico's drop, used for Resonator Ascension.

He fumbled forward through formless chaos, barely recalling when the shift in his perception took hold—the day he rose as the Primus, an icy conviction settled in his chest, so cold that it burned in his clenching grip.
Sources
Drop: Fenrico: Deliverance in the Deep
Fenrico: Deliverance in the Deep - Early Access