Zaragoza, Void Mage

Whenever a card would be put into your
graveyard for any reason, exile it instead.
You may cast any card that is in exile. If a card's
text instructs you to exile it, put it on the bottom
of its owner's library instead. Nonland cards you
cast from exile gain "Echo - Pay X life, where X
is this card's converted mana cost."
"Your world is so small, yet you box yourselves
in rooms even smaller..? " -Illyria, Old One