Leyline Tyrant mana ability is bugged. I had 5 mana in the pool, when oponent killed tyrant. I wanted to pay 5 and hit my oponent, but instead 11 mana was counted?! You have to investigate that.
Just had this issue, went from 5x red(snow) and 4x red to 14x spent.
Just had this same thing happen. Needs to be fixed ASAP