Nine times out of ten, your commander is the focal point of your deck
Mill is a classic in blue decks that aims to get rid of an opponent's deck by sending it to the graveyard, a term known as "milling." Millstone was the earliest card to accomplish this feat, and so is what the term is named after
Its vital to destroy one of your opponents Tron lands, mainly Urza's Tower, to keep them from assembling Tron and getting a huge mana advantage
Bans and Suspensions On the broader Historic metagame front, one of the big changes is the return of decks built around In Banned and Restricted Announcements earlier this year, we have talked about the dominance of blue and red decks
While it is quite expensive at 6 mana, I thought getting a free squirrel on your turn and being on point in terms of flavour meant it was a shoehorn for the deck