Rubys boost elemental ressistance. Take a look here http://www.larian.com/forums/ubbthreads.php?ubb=showflat&Number=526585&page=1
and here http://www.larian.com/forums/ubbthreads.php?ubb=showflat&Number=520831#Post520831
You can freeze and knockdown him, use voodoo dolls, if you have any. Death Punch spell/s will be helpful too.

Last edited by antip0q; 08/08/14 07:24 PM.