I was on the Exploratory Design and Vision Design teams for Magic: The Gathering | Marvel Super Heroes and was strong second for Mark Rosewater during vision design
For one red mana, it gave a creature +2/+0 and trample, meaning it could run right over most blockers
Jack-in-the-Mox is a reference to the Mox series of cards, but is otherwise not as interesting other than, again, the usage of dice, which is unconventional for sure but nowhere that funny
I always advocate against buying single packs and opening them, even with the dopamine high that you get
Orazca Puzzle-Door and Hermitic Nautilus are a couple of examples of new blue cards from The Lost Caverns of Ixalan that you can use to craft with two other nonland permanents with activated abilities for the card to transform into Locus of Enlightenment
Like their English counterparts, Japans Base Set also had a few print runs