[@Gnome Johnson] I think the sheet looks mostly good, but a few last points from me. I think the Free Folk should be pretty knowledgeable of obsidian, but in the same vein I don't think edging bronze with obsidian is very feasible. Obsidian is very brittle, and I don't think wildlings would be able to figure out how to fuse it to bronze. And it would be of pretty much no benefit since bronze weapons are far superior to obsidian anyway, if one remembers how the First Men dominated the Children with their bronze weapons. I'm not even sure if it's even possible to edge a metal blade with obsidian, though I'm no weapon expert, the idea just doesn't seem workable. Rolf will have to distinguish himself some other way. 

And perhaps you should make Rolf older to give him more time to be hardened as a warrior and more time spent gathering allies to make his alliance more feasible. Mance Rayder spent years gathering support. Rolf's attempts should have taken a while as well. As for his green dreams, I definitely don't think he should be a greenseer and I'm unsure if one can have those kinds of visions without being one, so you might say those visions are something that was told to him by some old biddy woods witch or something.