I tried iron maiden, hard level and was beaten. Cleared east part but got swamped with horde of enemies. I counted 35 units was around town on the north (https://ibb.co/prpP4Hg). I believe, strategy should be to have 1 squad to destroy portals which should be something like 5 fire archers, 2 Pegasus...

I tried iron maiden, hard level and was beaten. Cleared east part but got swamped with horde of enemies. I counted 35 units was around town on the north (image https://ibb.co/prpP4Hg ). I believe, strategy should be to have 1 squad to destroy portals which should be something like 5 fire archers, 2 ...