Rulings

• 2016-06-08
  You must choose two targets. You can't cast Victimize targeting only one creature card.
• 2016-06-08
  The creature you sacrifice isn't chosen until Victimize resolves. You can't return the creature you sacrifice because it will still be on the battlefield at the time targets are chosen.
• 2016-06-08
  As Victimize resolves, you must sacrifice a creature if able. You can't change your mind and choose not to sacrifice anything.
• 2016-06-08
  If one of the targeted creature cards is an illegal target (for instance, because it has left your graveyard before Victimize resolves), you'll still sacrifice a creature and put the other card onto the battlefield. If both are illegal targets, Victimize will be countered. You won't sacrifice a creature.
• 2016-06-08
  Victimize can be used to put both parts of the B.F.M. onto the battlefield at once.