Shenron, Eternal Dragon

Shenron, Eternal Dragon cant be cast.
Flying, Haste
Discard a card: Shuffle Sheron, Eternal Dragon from your hand into your library.
{t}, Sacrifice Shenron, Eternal Dragon: You may cast a card you own from outside of the game without paying its mana cost until end of turn. Active this ability only when you can cast a sorcery.