(2014-09-20) Because the permanent is on the battlefield both before and after its turned face up, turning a permanent face up doesnt cause any enters-the-battlefield abilities to trigger
Cauldron Familiar is also particularly awesome here, since if it dies (say, as a chump blocker), you can return it to the battlefield by sacrificing a Food, and if you do it on your turn with Gyome on the battlefield, Gyome will replace the Food on your end step
It's still a great white card draw spell for lifegain decks, but the fact that you have to pay two mana to get the card does prevent it from going out of control
I first built a Zombie deck years ago with a pile of graveyard synergies and token makers, and it quickly became the deck I reached for most often
Ill compare that to the foils in a moment
Apart from the 6 basic lands, a Commander deck may not contain duplicate cards and in the choice of cards for the deck you are also limited to the colors of your Commander