The years rolled slowly past, and I found myself alone....
The community is so entrenched in mechanization there are essentially no kingdoms that play "as is": it's this lack of variety that I find concerning.
I've got no motive to hit down so that takes top kingdoms off my list. Other than that I'm unaware of situations that these tools truly push a kingdom into rare air. Now plenty of competitive war kingdoms might think these tools are essential, but they'd be just as good and perhaps better IMHO without. Because instincts.