Enigma Thief - [Foil] Zendikar Rising Commander (ZNC) Box Activate only if you had

Activate only if you had an Angel or Berserker enter the battlefield under your control this turn

Vivid Creek enters the battlefield tapped with two charge counters on it

my question to you is—why not

You exile the top ten cards of your library

This drop also comes with five Zombie tokens

Enigma Thief - [Foil] Zendikar Rising Commander (ZNC) Box Activate only if you hadProwl {3}{U} (You may cast this spell for its prowl cost if you dealt combat damage to a player this turn with a Sphinx or Rogue.) Flying When Enigma Thief enters the battlefield, for each opponent, return up to one target nonland permanent that player controls to its owner's hand.