Sunny Should Only Attempt It As A Divine Being

I mean killing Eurys. Maybe it goes no where and he really wants to die. However the OG is one of the most mentally resilient beings we've met. Azarax barely lasted against the Shadow god's curse. Eurys passed through the Underworld, survived the god tier Dark being and others into the Shadow realm plus the essence storms there.

VTB is only one to match that level of awareness. Slayer/Orphne, and maybe the mad Prince maintained lucidity but not on that level. Maybe throw in Sunny walking through the Hollows without his true name.

Eurys may not have ulterior motives but just to be safe he should do it as a divine. That way he could control his shade more comfortably than as a Sacred. VTB was one misstep too many. Eurys could wield his will like a supreme at Saint level. He could be a risk.