This oil works pretty much the same as a Revenge oil, but is a little bit darker than that. Use this oil to send back evil, to get even when someone really did do you wrong. If a b*tch asked for it, well, then they deserve it... And don't ever feel bad about it, you just return sh*t to sender.
Also with this oil I'll have to warn you to NOT use it on your skin,you really don't want to. 
Dark Arts main ingredient is the good old chilli pepper to add some heat to the whole.