Best as a Commander Get ready for all the SakuraCon 2009 memes people will sourcelessly reference when they play this commander
A card like Ominous Seas which is in nearly 10,000 decks is way below a card like Whirlwind of Thought, which is in half as many
As more leaks likely roll their way into the preview season, stay safe, exercise caution, and remember that official preview channels are the safest when speculating.
Sure, you can choose to mill your opponent, but much more interesting is how Jace plays in a self-mill graveyard deck where he plays as both an enabler and a payoff
In big-mana decks, I actually still really like In Garruk's Wake
That's not actually the case though, with estimates pinning the actual number at around 90