Kidra
Unfortunately a lot of that stuff is hit and miss. For Captain America Comics specifically, Marvel has released reprinted and digital copies of issues 1-20 then 76-78. To read 21-75 you have to either get a hold of physical copies (very expensive) or pirate them (where many of the scans are poor quality).
For the ones available digitally, Marvel Unlimited is probably the best option. For not-technically-legal scans I personally used https://readcomiconline.li/ but I know other people don’t like their UI (and I think the ads can be pretty bad but I use an ad blocker that seems to cut it all out)
I don’t understand the concern. If you want to read a comic, do it. The existence of the MCU doesn’t inhibit that. Maybe I’m missing your point though.
I wonder if something like the buff to angel would make him somewhat viable, where he would come on the field even if he’s in your hand.
I know that means you’d have less reason to actually play the card when you do have him, but at least his ability would have a better than 25% chance of activating.
I would personally HATE this. Moreso the levels than the gear. Maybe a single session or dungeon that I know is going to be short, but if I had to regain those levels I’d contemplate leaving the campaign.