Forum:Cards in different language in the same deck. Illegal?

Just as the title says, is it illegal to have cards in different languages in the same deck? I'm running a Dragunity deck and most of the cards are in english except for Phalanx and Vajrayana which are in japanease. I went to a local tournament and the owner told me I couldn't participate because Phalanx and Vajrayana were in japanease... Is that true or was he being an asshole? ReyPirata (talk • contribs) 20:25, March 31, 2011 (UTC)