New units in Necropolis. Discussion and selection between upgrades.

I agree with Cheri@ about the Spectre! I remember playing against someone here, and they took Spectre from the Haven faction – a secret Spectre (so that the Seraphs could cast Divine Retribution twice). And in battle, the Spectre immediately went to the Seraphs, and that was it! And they also stole mana from them.