Dungeon of the Mad Mage Runestone Caverns room allows for casting cards indefinitely
Dungeon of the mad mage runestone caverns not working correctly. Opponent was able to cast cards indefinitely. I looked into the ruling and it should only be castable at the time of activation.
Has happened multiple times to me as well, with opponents continuing to use incorrectly after I have told them it's a bug
Can confirm this has occurred to me as well