Heroes 3 (HEROECOPALKA)

There's this ugly character – a Knight, Lord Haart. He's simply invisible through the map editor. If you ban all units on the map using the map editor, he'll appear in the tavern.

Yep, Ley beat me to it with Haart :) SandroXXL also encountered this, and I created a thread about it without getting an answer... So, it seems like a bug...

If we recall the story, Lord Haart was a Knight, I think. And then they turned him into a Necromancer, but the core probably still has the old "prototype." That's why his unit gets thrown onto the rampart when there's simply no one else to recruit... In short, these are just assumptions... But what does Caitlin have to do with it?