Text (SM): Return a card at random from your graveyard to your hand, then reorder your graveyard as you choose.
You can shuffle your graveyard in order to pick randomly. [Shadowmoor FAQ 2008/04/21]
If multiple cards in the graveyard have the same name and one of them is targeted by a spell or ability at the time ths resolves, you must keep track of which one is which. In this case, using dice or using a proxy card to represent the targeted card is recommended. [Shadowmoor FAQ 2008/04/21]
All players get to see which card was chosen at random. [Shadowmoor FAQ 2008/04/21]
Reordering the graveyard does not break any targeting by spells and abilities on the stack. [Shadowmoor FAQ 2008/04/21]