Prediction Princess Tarotrei (DLCS-EN086) [Dragons of Legend: The Complete Series]

You can Ritual Summon this card with "Prediction Ritual". Once per turn, during your End Phase: You can Special Summon 1 Flip monster from your hand or Graveyard in face-down Defense Position. You can only use 1 of the following effects of "Prediction Princess Tarotrei" per turn, and only once that turn.
<br>• During either player's turn: You can target 1 face-down monster on the field; change it to face-up Attack Position.
<br>• During either player's turn: You can target 1 face-up monster on the field; change it to face-down Defense Position.