Valentine, Shattered Void

+2: "Crystalline Resurrection" - Create a 0/2 crystal wall with defender, and create a 2/2 zombie onto the battlefield tapped.
0: "Question Your Sanity" - Swap this card for a different "Sister" (Valentine) from outside the game, keep the same loyalty as this one.
-10: "Endless void" - Reveal the top 5 cards and play all of them tapped onto the battlefield tapped. You have no maximum hand-size.