Interesting that she was able to take him down so easily, though. Is he just not a technically skilled fighter like her, Math, or Jabberwocky? Or perhaps he gets more juice out of someone getting beaten than an exchange of successfully defended blows, even if that 'victim' is him, and took the initial dive to power up/satiate himself quicker?
And yeah, with two Superman analogs, Dabbler, and Halo all present, I'd argue that Vehemence is less likely to escape here than he was from his cell.