Every time some kind of Magic: The Gathering Secret Lair deck gets shipped, Wizards of the Coast seems to accidentally send an unrevealed product to a select few customers, resulting in leaks
Mystic Tomato The OCG art for this card is adorable
If this card is sent from the field to the GY: Add, from your Deck to your hand, 1 Equip Spell that mentions "Ogerpon, the Masked Guardian", except "Mask of Cornerstone"
Swing into a bad set of blocks, only let the unblocked creature deal damage, and nothing else happens
This basically boils down to Jund and Esper looking much less consistent and put together compared to the other two decks, although this might be (at least in part) because it's easier to build a cohesive artifact- or enchantment-themed deck than more abstract themes like "the top of your deck matters" or "lands matter." Here's a quick pros-and-cons list on the four decks