Well, Stannis never was very good at getting along with his Brothers. So I'd chalk it down to good old nedliness.
Oh, and Good God's Own Kiss nearly made me spill my coffee. Something along those lines, and Bara might actually be able to field some more interesting decks again.
Storm's End Tourney Grounds just doesn't have enough support from printed Joust keywords. Without the new Flowers (which just isn't as good as the old one, especially in a Knights-centric deck that is required for the Joust-giving weenie) it requires a three card combo to do anything, and is too easy to control/disrupt. If they printed a few (good) Joust characters for Bara, then it might be worth trying out. Just yet another underdeveloped theme in Bara. ; )