Unstoppable Crash + Don't Push That Button = infinite free matching
CPU controlled Juggernaut Unstoppable Crash'd away the countdown tile for 4* Rocket and Groot's green, but the passive free extra match continued to occur, even after the tile would have naturally expired - all the way to the end of the fight. After the extra match, gameplay continued as normal for that turn, as if the countdown tile still existed. Occurred during the 4* Rocket required node on Scotland Yard. I have not tested it on other nodes or with a player controlled Juggernaut.