Zeke, The Gatherer

({p/g} can be paid with either {g} or by putting the
top card of you library into your graveyard)
Double Strike
For each {g} in a cost, you may put the top card
of your library into your graveyard rather
than pay that mana.
You may look at the top card of your library
at any time.
You may play creature cards revealed
in this way.