Reading the Fallen Elf / Fallen Druid topic (great work there BloodShadow) I was just thinking couldn't it work with deja vu's as that gives you two easy targets to mutate rather than the normal 1 creature, not certain on this but seems like a viable tactic.
About darkness cards I like choosing cards I don't sue that much to learn more about them and get some ideas so I don't know why you all want to know more about bonewall considering if you've used a anti-FG deck enough you'll probably know plenty about it.
I went for Aflatoxin in the end was considering Grey nymph but decided against it, wondering about it's effectiveness in certain situations and wondering about some deck ideas, make sure you include using it with bone buckler.