Unfortunately 500 characters isn't enough to describe the faults with this. Playing with an epic dice to fulfil a challenge; the game is ignoring that die; if you use a reroll, 9 times out of 10 it will roll the same number. My math is bad but the game is worse. I have 7 crystals and a reroll is 5 crystals yet the game says I don't have enough!! Worse, when you do get 1/2 crystals from a chest, 4 plus 2 used to equal 6 except it's 5 in this game! WASTE OF MONEY and TIME!