[quote=PhoenixEye9]
Dude, I can tell you a slow acting assasin one. (Also part of that reason cyanide is there is it is the fastest acting an most widely know poison.) but Botulinum Toxin with strand B it will stop the body from making proteins and pretty much choke your body out from the inside out
[/quote]

True, but it takes several minutes to a hour. It could force Magnus's opponent to give him what he wants in order for the cure.