Are there Planeswalker cards in Duels 2014?
Solution 1:
This page is the full list of cards in the game. There do not seem to be any Planeswalkers cards.
However, the Planeswalkers are actually your opponents. Playing through the story you face opponents such as Chandra and Jace. The likely reason for this is that Planeswalkers are more like players than any other spell. In fact, when playing, you are a Planeswalker.
Solution 2:
No, there are NOT any planeswalker cards in the PC game.