Warlords of Draenor

Creatures you control have haste.
Whenever a creature you control attacks alone,
you may look at the top card of your library. If it
is a creature card, you may reveal it and put it
into your hand. If you don't put the card into
your hand, you may put it into your graveyard.
"Amid the altered history of Draenor, new leaders
rise, forging legends that will echo across the ages."