You know that signature move Captain Marvel has when he grapples someone from behind, says SHAZAM! and the magic lightning hurts his opponent pretty badly?
What would happen if he did that to Black Adam? Would he revert back to his human form since it's magic lightning, or is there a difference? Also, if Billy were to try this on someone who can go intangible (like Vision or Shadowcat) would the lightning bolt still hit them cause it's magic?
Oh, just thought of another: Has he ever tried it indoors?