I recently dug up my old cards from the storage. My 11 year old nephew learned to play Magic while on vacation, bought two cheap decks, and taught it (badly) to my 9 year old son. At some point in all that, of course I need to show this old shoebox chock full of old Magic cards. Instead of letting him play with my old cards, I decided that my son needs to have his own cards, so we went to my local game store and boug…
I lost pretty handily, and the big takeaway was what you found.
I hate to say it because its the hokey hipster thing to note, but back when I was a kid and it was all Urza's Saga, Mercadian Masques, etc, the cards felt much more... gritty and real. Everything felt more bloody and less cartoonish and lightweight. Maybe that was part of being a kid.
Play is actually much better/more balanced than I remember though, by far.