User blog comment:MrPacheco101/The Night Brimestone and Fire Poured From The Sky: Etrigan The Demon & Edward Elric/@comment-3428301-20120415161017

I say etrigan due to the fact that though Edward can transmutate the metal into etrigan's weakness he has to find the weakness first. By the time he is able to do that Etrigan will have made mincemeat out of Edward