Cal has two abilities that require opting in. One plot related, one combat related.

Psychometry: People who experience strong or intense emotions while using an object or in close proximity of them imprint that moment on said object. Upon touching the object, Cal then experiences that moment as if he were there. Cal isn't going to pry into someone's life intentionally but if there's ever something you'd want to find out, let me know.

Stasis: Combat-wise, Cal can essentially slow down time to an extreme crawl for a few seconds on pretty much anything; people, objects, lasers, etc. It does remove character control for a bit so let me know if its cool.