Servitor of Futility

You may tap any 4 of your lands in play rather
than pay this spell's mana cost.
You may look at the top card of your graveyard
at any time.
Posthumous Strike (This creature cannot block
and may only deal combat damage after it dies.)
{t}:Untap Servitor of Futility. It becomes a Robot
with base power and toughness 2/2.