AEther Javelin

Target creature gets -3/-0 until end of turn. If
you cast AEther Javelin from exile, you may
switch that creature's power and toughness
until end of turn.
Feedback 3 (If this spell would be countered or if a
spell or ability an opponent controls causes you to
discard this card, exile it instead unless an opponent
pays {3}. If it is exiled this way, you may cast it this
turn.)