Rest Zone

This card can´t be destroyed. Other artifacts and
enchantment you control can´t be destroyed or exiled.
Once per turn, you can activate the following effects:
{x}, {t}: Search your library or graveyard for a Corrupt
creature with mana value X, add it to your hand.
{x}, {t}: Search your library or graveyard for an artifact with mana value X, add it to your hand.
{x}, {t}: Shuffle X cards from your hand into your library
and draw X.

"Seems like we can rest here."
~ Umbral Knight