Comments of chapter undefined of Reborn as a Skeleton with a System

I would've gone with the White Flame option, as it seems that for now he can just smear the remains of these venomous/poisonous undead into the weapons to give it the poisoning capability. And unless that poison he got is magical in nature, I imagine he still can't deal with ghosts, which I imagine the White Flame might work to some extent at least.