I was thinking of it more in the sense that bohr parasites would just flat out destroy aragami cells, making feeding on god-eaters potentially deadly to both parties. With the parasite the revenants are host to instinctively wanting to consume all of the aragami cells in the target's body, it would most likely send them into a mid-feed frenzy and cause them to loose control. Resulting in a butchered god-eater and the creation of a lost. Although the same would apply attempting to feed on an aragami. They also have all their magic, so while I won't say no to transferring abilities, without some sort of extreme circumstance, attempting this in the field would fail for balance sake. At least at the start. Want all parties to feel balanced in this. But yes if it makes sense feasibly, with the exception of the above, go for it. :) I'll be waiting to see if perhaps 1 or 2 more are interested before attempting to move forward with this, if even as a 1x1.