If most of your deck costs 5+, your commander and board never stabilize
It's not a surprise that things don't translate well, and my expectations were low to begin with, but ultimately I'm still disappointed
No Dark types, no Steel, just classic 1st-gen monsters, simple Trainer cards, and nostalgia in cardboard form
Edit: Tyranids brings up a good thought - Ancient Mew or another iconic vintage card would be a great addition, you can tell him the story behind it and introduce him to the boomer side of collecting
But MTG is still alive and kicking so far, and I have to admit that I was part of the very-opinionated-about-this gang when this Arena-exclusive set of cards was announced
Modern sets like Pokmon 151 have also introduced ultra-rare variants, such as the Master Ball foil cards, that have become immediate collector favorites