I didn't save the log or a screenshot, but I just had a game where I was threatening to win once I melded a 6, after scoring a bunch with Coal. There were still a bunch of Age 5 cards left to draw and my opponent had a decent tech and icon lead as I had been scoring most of my board. He jumps up even further in tech and ends his turn having drawn a 10, Bioengineering, which would win the game for him if he could get it down.
I looked at the Archery in my hand, checked the Castle balance, then melded and activated Archery to steal his Bioengineering.
(We played a rematch and I crushed him with a Reformation/Fermenting engine, for which I'm also sorry, but that kind of thing happens all the time).