The trick to getting the most bang for your buck with Aetherworks Marvel is going for large-scale Energy plays on turns 2 and 3, preferably a two-drop that adds three Energy and following it up with a three that can generate three or four Energy
It's probably possible with enough training data, but the couple of hundred images I took by hand --- or the thousands of synthetic examples, couldn't do it
It starts by putting a +1/+1 counter on each creature you control, and two on the next turn, and multiplies from there
Card fronts, backs, sizing, alignment, exports, and checking everything
If I was fishing in the wrong spot in Genetic Apex because of that alt art Gengar in the Mewtwo packs, then I have no excuse with Mythical Island
Consider the non-canon cards and the canon cards' equivalent game pieces, meaning you can only play four copies (or one copy) of either the Magic version or Universes Beyond version in your deck