The Soul Eroding Poison Raon applied to the spear tip for it to easily pierce and enter the bloodstream of the Diplodor wasn't a rare poison, to begin with.
Well, not rare for him.
If anyone else wanted to get their hands on such a poison, they could just dream about it.
Poisons are strictly regulated by the ruling powers, and even the underground organizations don't deal with poisons carelessly.
Strictly speaking, poisons weren't accessible to the masses or even strong vagrants or rogue cultivators. Only those with special backgrounds could use them.
Of course, this all only applied to the territory of the Arcane Empire.
Every Titled Empire had its own sets of rules, some even having their entire foundation laid on poisons, seductions, dreams, mind control, and other aspects.
But that's for another time.
