Nicci, you know, obscuring mist hinders the party quite a lot :P. You should place the mist over the orc archers and force them to move (or between the archers and the party so archers need go around the mist or through it, either way it would be a win as they cannot remain formation nor use full round action for ranged attacks). Mist on party means that Will's actions become quite ridicullous and also have miss chance from even hit orcs who come screaming charge him (and altough I do not mind miss chance but if it hinders me also then it sucks as I got no blind fight feat nor means negate it).