Ermor Ashen Empire and Soul Gate are 'broken' as far as SP is concerned. You don't have have to worry about everything that any other race has to worry about initially and the AI has a hard time dealing with Ermor.

This is not the case with MP, however (just so you don't think the entire race is broken). The AI doesn't understand how to counter Ermor (building masses of priests, scripting the powerful anti-undead spells) or keep it's dominion back so you arn't eating away their empire.

You should in the near future see an AI fix regarding at least some of it (as they did with Smite Demon).

If you want to play Ermor and make it challenging vs the AI, try making the settings much harder than you would playing any 'living' nation. Or alternatively have alot of nations so you can't just sit and get units without fear of invasion.