Just for clarification, from me, someone who is old enough to have read comics, and a Marvel fan, I have to say I think Mase was right about Shazam..
He was originally Captain Marvel, before Marvel had the character. Marvel took DC to court, and they had to change the name to Shazam.
DC comics are crap. Marvel comics are FANTASTIC. Aside from Batman, all DC heroes are waaaaay too powerful. Makes them less interesting..
On the Captain America Shield question. It’s made from Vibranium, not Adamantium, and it is not indestructible. I am nerdy enough about Star Wars to know my Midichlorian levels are fairly low, but not geeky enough to be fluent in Shyriiwook. Not yet anyway 😜
Long story short; a lightsaber would cut through his shield, but wouldn’t be straightforward like other metals.