Force is nice in that it is the perfect follow up to an Inferno Titan or a Wurmcoil Engine but this is rather an ideal situation and not something that should be too influential in deck design
Its a lot easier to get working to kill a player than other similar effects
This is any card you play that gives you more cards in hand, or access to more cards than whats in your hand
Ponder, Portent, Preordain, Brainstorm, Telling Time, Opt, Consider, and Otherworldly Gaze are all fine options
Two of the three Mystical Archive foils in each collector pack will be an etched foil
Ygra, Eater of All The food commander of my dreams, Ygra, Eater of All makes an excellent sacrifice commander because it increases the scope of sacrifice outlets we have available to us