Reap the Past
Reap the Past
Return X cards at random from your graveyard to your hand. Exile Reap the Past.
The ground cracked and unleashed a thousand years of history at once.
illus. John Severin Brassell # 211/254
Oracle Text
Return X cards at random from your graveyard to your hand. Exile Reap the Past.
You can't just shuffle it and chose the first X for 404.2: [...]A player can examine the cards in any graveyard at any time but normally can’t change their order. [...], and the cards itself doesn't explicitly tell you to do so.
Moreover, you wouldn't just flip it upside down and let the opponent choose since as you declare your casting he can ask to see your graveyard and see where relevant cards are.
So, which would be a correct/the best way to choose X random card?