Welcome to Law.com Class Actions: Critical Mass, Law.com’s weekly briefing for class action and mass tort attorneys. I’m Amanda Bronstad. Johnson & Johnson scored a second court victory this month in public nuisance cases brought over its opioid drugs. Lawyers have named a host of defendants in lawsuits brought over deaths and injuries at Houston’s Astroworld. Find out who is representing a group of IHOP franchise restaurants in overtime cases now before the U.S. Judicial Panel on Multidistrict Litigation.