The biggest downside here is if an opponent wipes the board, you not only lose your board state, but your draw engine
Mill never had the right support to dominate any format, and if the milling failed, the mill deck would be too far behind in the game and lose but in Commander, even with 99-card decks, mill might work with creatures like Bruvac, the Grandiloquent around
Being a Pirate and having the granted ability are part of the copiable values of Pirated Copy
This wizard still isnt a slam dunk, but it only costs 4 mana, it creates a body as it enters, and it makes your board much more scary if you have other vehicles the turn it comes down
The Ozolith gives you a non-creature permanent on which to store your counters and is a good mover of counters as well
It was understandable in the First Chapter to have Amethysts role defined as the active card draw ink color but supplementing it each set (and combining with playable and powerful passive card draw engines even within color) has become abusable already after simply two sets