can I run a formation with the following pieces:

Dwarven axe knight (BPR)
Sham-Rin (BPR/Hero)
Detonating Zombie (BPR/Necropolis)
Zombie baron (necropolis)

thanks for any replys:)

I'm sorry, you cannot. If you take out the Baron, then yes. All of the figures must share a Faction Symbol.

No, unfortunately, all the peices have to share one zymbol. The Zombie Baron is necro, while the axe knight is BPR. If you take out either the knight or ZB, you will have a legal formation. Have fun!

In order to put your units into a formation they all must have the same faction symbol.
Dwarven axe knight (BPR)
Sham-Rin (BPR/Hero)
Detonating Zombie (BPR/Necropolis)
Would work as a formation

Just sharing a faction symbol with a member would not work.
Detonating Zombie (BPR/Necropolis)
Zombie baron (necropolis)