For best results in tuning a list, a combination of a checklist, playtesting, probability math, and (most importantly!) playing cards you that find enjoyable is the way to go
Do remember that Moltres ex cannot accelerate Energy to Mew ex because it is not a Fire-type Pokemon, so you will need to commit to attaching Energy to it for three turns if you want to make use of Genome Hacking
But these cards were guaranteed to be used in promotional work, and literally had to be as big as possible
You could describe this as storybook-style artwork due to its highly detailed background and use of watercolors, but truly this style is unique to sowsow
It doesnt matter if the card is played from hand, revealed from the deck, or placed into the graveyard or banish zone, you need to read all of them
Urza holds an important place in the story as a character, so we knew a planeswalker card of him had to be a big deal