Temporal Anomaly in its first upgrade can softlock the game by playing it without any cards in your discard pile, since you have to select two cards and the only card is Temporal Anomaly.
Thanks, I have noticed that too and it should be fixed in the next update, which will hopefully be done at the end of the month at the latest (it's a bigger one)
I hope I don't introduce too many new bugs of that kind, but I probably will :)
