Concealing Mist

Prevent all damage that would be dealt this turn
{4}: Planeshift (Mystic Mist) (Exchange this card
with a card you own with the same Planeshift from
outside the game. or Exile. That card cannot
Planeshift this turn.)
"An Illuminated One or his minions may seem
obvious moment one moment, then cloaked from
all perception the next."