Misunderstood Artiste

Hideaway (This creature enters the battlefield tapped.
When it does, look at the top four cards of your
library, exile one face down, then put the rest on the
bottom of your library.)
When a spell or ability an opponent controls
destroys Misunderstood Artiste or when it's dealt
lethal damage by a source an opponent controls,
you may play the exiled card without paying its
mana cost.