I'm not using Stalfhaust. I'm running:
Ksendra, Hriger, Leviatonn, Ludmilla(yes really, but you can sub If you find her distasteful), Mokra, Murray, Alestier, and Wakai.
It's nearly DR immune, is strong vs Uppers, but it's mildly vulnerable to other SoA decks.
Im sure a little tinkering can be done, but I played it into the 1330's so it's pretty good as is. I like Ludmilla because she is rarely taken seriously, but her 6 power can bite me occasionally. Once past the rank and file, an upgrade to Z3r0 or Mok should probably occur. Wakai has been amazing this week. With the widespread use of Uranus, Alesier and Spiaghi he more than justified his place.