Nice post, was farming GoF IX t'll I got blue Valkyrie.. Now it's X
Came independently to similar conclusions, then GMAC told me about this post...
Been using a very similar team than the one discussed here, just exchange the Pharaoh dog for a WuR & before pulling her, a magus allied solider (LVL IX)
Now with her X is a breeze, she seems built especially for it..

Still working on Dismay X.... IIX 100% IX 90% & counting..