Every now and then I’ll get a card in my deck that has prophecy as a bonus feature of the card, but nothing is ever listed next to it as to what bonus effect you get when you use a card that has prophecy. What bonus does it apply when the card is used in a game?
There are 5 little blue things around your player icon at the bottom during a battle. As you take damage these shatter. When they break, a random card is taken from your deck and added to your hand. You can then use the card during the next round. If this happens and the card is a prophecy card, you can place the card right away, even if the opponent is mid way through their turn.