Better Angels: The Spared and the Spoiled episode 1

Caleb's new campaign begins with a bang! A group of unlikely protagonists is imbued with demonic superpowers after a group of supervillains die during an attack on a charter school, the Brighter Futures Academy. Unfortunately, not all of the villains died, so the newly empowered antiheroes must fight an experienced foe only minutes after receiving their powers. What slew the original villains? Who are the new superhumans? There's only one way to find out!