Ranger – “Emerald” [5th campaign, 2nd mission]

aha! thanks, I'll try
I captured the city, and they gave me a dragon
but while I was capturing the demonic city, my elven city was captured
and I can't seem to gather enough troops to take it back
I've probably replayed it five times

Added 1 minute ago

I built everything and surrounded it with mines, but I can't gather enough troops to take back even one demon.