Dunedrifter Mummy

When Dunedrifter Mummy enters the battlefield, you may look at the top 5 cards of your library and add a mummy from amongst them to your hand. Put the rest at the bottom of your library in any order.
When Dunedrifter Mummy is destroyed, attatch it to a tapped land you control. When that land is tapped for mana you may cast Dunedrifer mummy without paying its mana cost.