Nightmare Mist

Flying
Vanishing 6 (This permanent enters the battlefield with 6 time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
Recover {2} (When a creature is put into your graveyard from the battlefield, you may pay {2} . If you do, return this card from your graveyard to your hand. Otherwise, exile this card.)
When this enters the battlefield target creature gains Vanishing 5