Lor'Wyvan, Sleight-Oracle

Flash, haste, prophecy 2(When you draw this card,
draw two cards.)
At the beginning of your attack phase, enchant
and control target creature until end of turn.
Lor'Wyvan, Sleight Oracle and creatures
enchanted by it have, "{t}: Look at the top of the
owner of this card's library. If it's an instant or an
aura, cast that card. You may shuffle that player's library, then it's owner draws a card."