BTW, I thought I mentioned this in the primer, but Sphere stinks against Noble Hierarchs and Llanowar Elves. Those decks run at least 8 ways to get 3 mana on the second turn, which makes Sphere only relevant on T1 on the play - cut it. Sup Field and Jitte are nuts against Mav, which is kinda unfortunate. Like to come up with a MD answer to Hierarchs that allows me to side in Sup Fields too, but my time's better spent going Tezz-Vault in 300 cards.