[Mardagg]

Well,Sauromatia is considered to be one of the best EA Nations.
They are very versatile and ,like LDICesare said,are strong in Death and got easy access to Nature and Blood.
Sure,they are better Blood Nations around,but those lack Death and/or Nature and having easy access to Blood is good enough in itself.
I would think u cant do it wrong with Sauromatia.
Either going strong for Blood or only light or medium,its up to you.
You dont necessarily need Blood unlike most other Blood Nations.

I wouldnt use ur Witch kings for blood hunting btw,they are a bit too expensive and rare for that purpose.