I was playing an izzet deck and I had a few plays and I had 2 mountains and 2 islands and when I had 2 2 mana spells to play that were blue, a warped singer and the titan that if played 2nd goes to 2 mana, and it tapped botn my islands with no red spell able to play.It did this not one time, not two times, but 3 times. It caused me to lose from the first and second as I caught it the third time. Looks like an issue with priority with this set.