"The Will of Ashan" - "Heart of Darkness" [2nd campaign, 5th mission]

Yes, that's true, although you can use assassins to close the demonic portal so they don't interfere...

:smile29: Absolutely unnecessary!!! Aside from the first two demonic heroes (I don't know if they came out of the portal), after they were destroyed, two more emerged from the portal. Then, I placed a weak hero without an army near the exit of the portal. Either this worked, or there were no more of them, because no one else emerged from the portal:smile29: