It means that you cant draw too many lands
It's an artifact with ", Sacrifice this token: Draw a card.") Doctor's companion (You can have two commanders if the other is the Doctor.) Doctor's companion (You can have two commanders if the other is the Doctor.) Legendary Creature - Human Detective Sibylline Soothsayer Temporal Foresight When this creature enters, reveal cards from the top of your library until you reveal a nonland card with mana value 3 or greater
However, I think these are easily the most powerful Doctor Who Doctors in the Magic: The Gathering Commander decks
Mickey Mouse, Brave Little Tailor A lore machine that packs a punch - if your opponents can even hit it If Mickey Mouse, True Friend is the Disney mascots entry-level card, Mickey Mouse, Brave Little Tailor amps up the mouse with some serious firepower
You can play it in virtually any color combination that includes green, and tune your gameplan towards aggro, midrange, control or combo as you see fit
In each case, there is a -1 decrease to the cost of spell-casting for each color