Godsend, 7th of Sporebloom, 2310,
A stupidly effective poisom. If you trick somebody into consuming something laced in obvious yellow dye that smells strongly of carrots (for some reason), you will change their life forever even if they survive. Physically, it targets the nervous system and brain, which is thus cause for permanent damage. Its effects are... long and terrible.
It is foolish. Each time I brew a poison for the sake of completion of the list, I consider how terrible it is to bring such a concotion into creation. However, I consider-- who would consume such a thing? Who would be so blind as to not realise the smell nor vibrant colour in their food or drink? Yet time and time again, others unravel their lesser intellect to me by repeating mistakes or not seeking mental help with questionable life choices.
People could be lured to drink or eat poison. I just gaze upon the bottle knowing it will not be me.