Decay 4. (When there are four cards on this event, destroy it.) Plays in your core. At the start of each of your turns, place the top card of your deck on this event. Your [Voy] Treachery personnel cannot be killed by planet dilemmas. When your personnel complete a [DQ] planet mission, you may place each [Voy] or Nucleogenic card on this event in its owner's hand.