Thank you all very much!!! Follow-up question: How is the damage of Gorgon's Deadly Gaze calculated? I noticed that its damage is 2-3 times more powerful!
This damage isn't actually calculated... It's simply that one of the units in the enemy army has a 10% chance of being sent to the Hall of Heroes... And it doesn't matter how much health it has... This applies to each powerful Gorgon in the stack, meaning a stack of N Gorgons has the highest probability of sending exactly N/10 enemy units to the Hall of Heroes.