Watch what behemot uses Healing Spring, then wich one uses it next and so on.When you know the patrol, just wand the correct behemots in the correct order.
Don't know why my opinion on the matter was removed by an admin. lol?
Anyways. Pain Inverter is your friend. As riktw said the best thing to do is get close enough (just slightly out of range for triggering the traps) and use Pi and watch the magic work.