I found these two videos in Japanese which summarized the basics well (although they are far from comprehensive)
Maybe a card idea gets filed and sticks forever, maybe it gets tweaked in playtesting, or maybe it gets cut completely. In the final Play Design Stage, a separate Wizards of the Coast team with a background in competitive Magic vets the nearly complete set for its competitive elements, sending back proposed changes to fix any balance issues
Sad that he doesn't enable the same with monstrous, which is effectively the same ability without the "if it enters play this turn" sweetener
You can get a decently powered flying creature and remove an opponents best card at instant speed, or improve your own hand
Every card has multiple uses, and hand management across turns feels more like chess than cards
Each Draft Booster display box contains 36 packs, with 15 cards in each pack, for a total of 540 cards in each display box