pokemon cards marshalls at Found at Marshall's never seen

If an opponent only has one creature on the field, then they can't block a creature with Menace

Its not a stretch to believe the card back was designed solely for this mini-game

a 23-card Evolution pack featuring key cards from current and prior sets, including one of four alternate-art promo cards

Others, like blacks relationship with mana acceleration, have undergone a surprising amount of change in terms of how many cards they receive with the ability to generate extra black mana and how comparatively restrictive they are versus a card like Dark Ritual, one of the first and strongest go-tos for mana acceleration during Magics early years