With the revelation of what the Hundred are capable of in TAE so far, and given the nature of the White-Luck warrior, I find it more than likely that Inri Sejenus had the White-Luck, he just wasn't a warrior per se. I think the gods created Inri in a similar fashion to the way the WLW was created, only for a much different purpose: to "officialize" the varied and multi-faceted Kiunnat (just look at how differently the Zeumi, Inrithi, and Fanim all have "interpreted" the Kiunnat) into a regimented system of worship, through which the gods could more properly acquire souls. This would explain why Inri Sejenus could heal the sick, for if he was of divine origin then he is not limited to the "destructive" magic of sorcerers but to divine magic, or thaumaturgy as some here call it (the kind of stuff we see with Psatma and Porsparian, which does not at all resemble the destructive forms of sorcery, but instead is usually "creative", like the flesh-sculpture Porsparian makes of Yatwer, or the ritual of the WLW).