All of his Act 3 stuff is rushed (like everyone else's to be fair). Cazador's palace is tiny while the basement is a big empty space, the puzzle still doesn't work, or at least the Reddit hivemind can't manage to solve it, the 7000 spawn are just a number, there's an entrance to the Underdark somewhere? Cazador can be killed with or without Astarion, so it would be nice if the palace had more things to do in it.
Is the puzzle in question the one ...
... that you enter from the trap door under the chest in that second room adjacent to the ballroom? I think that works now, though the end is somewhat underwhelming and I felt that I was missing something. Just like the whole Amanita story does not seem to lead anywhere.
