Maybe the easter eggs and magical moments are applied based on the unit's background?
Like in myths, the Iron Golem is incredibly strong against non-magical weapons and there was a chance that the weapon got stuck in them and they wouldn't die untill you took it out. This translated in ticks, could maybe explain why they survive a whole tick while still being targetted (surely they must get targetted, otherwise the whole combat system is crooked) and they only survived because the weapons got stuck in them (ok, sounds a bit like stoner-talk, but bare with me). Which could explain why the Golems do survive, while still being targetted. Once the tick is over, the supposedly stucked weapons are regained and the Golems die.
If it doesn't make sense... sorry, I'm high atm.
Like in myths, the Iron Golem is incredibly strong against non-magical weapons and there was a chance that the weapon got stuck in them and they wouldn't die untill you took it out. This translated in ticks, could maybe explain why they survive a whole tick while still being targetted (surely they must get targetted, otherwise the whole combat system is crooked) and they only survived because the weapons got stuck in them (ok, sounds a bit like stoner-talk, but bare with me). Which could explain why the Golems do survive, while still being targetted. Once the tick is over, the supposedly stucked weapons are regained and the Golems die.
If it doesn't make sense... sorry, I'm high atm.