I think Gelt and the Lore of Metal in general are very good. The only rule about Gelt that bumms me out is that they didn't clear up how his miscast reslut works. Since they say "the spell still fails" or somesuch, everyone I ask seems to think that if I double 6 something, the spell just doesn't go off at all.. Lame when you really just want to risk the miscast result.