It was kind of disappointing that Adelheid didn't have any attacks for if the enemy did make it through the barrier.
It makes me sad that Daemon did that, I hate to think of Mukuro doing something like that even though I know he's fully capable of it too and may already have orchestrated some things.
So Cozarto was helping Giotto build his dream, but meanwhile Daemon was destroying it. That's why Vongola changed after that, producing more people like Xanxus.
What I don't get is why Daemon didn't just make Xanxus the new Tenth.
It does make me a bit sad to think that Julie's personality was lost over time.