Shazam's back story is that he was originally a young boy named Billy Batson. He was given the power to transform into a super - hero by an ancient wizard. When he says the word 'Shazam', he is struck by magic lightning and turns into a powerful adult with various super - abilities like super - strength, flight, and lightning powers.
Batman's brooding and serious personality would likely have a big impact on Shazam. Shazam is more light - hearted and naive, so Batman's influence could make him more cautious. For example, Shazam might not rush into battles as quickly.
Shazam's presence would likely add a touch of naivete and innocence. He could be the one to question the League's more complex and sometimes morally gray decisions, adding a fresh perspective.
Naruto could develop by learning to control the new powers of Shazam. He might start off clumsy but gradually master them. For instance, at first, he might accidentally break things with his newfound strength, but then he'd learn to be more precise.