I've killed two tiny ones and my big one I bought had a setback when I followed the advice of someone to give it full sun. I feed it with Miracid as a friend in Florida reported good results with that for his. Mine is in a greenhouse where humidity is higher as I've been told that is very important. Some people suggest well-drained soil but a nursery in Hawaii (Pahoa) discovered by accident that they do okay even when in standing water.
I've never heard of War Head's. But I have heard of the berry's help with chemo patients and, if my plant every does well, I would plan on talking to a friend who is a hospice nurse to see if she would like to offer it to patients (for free). That in itself would make it worth the $200+ I paid for my plant!