it's a homage to the unforgettable memories of childhood
There were also several mechanics in the base game that went by different names than they do now, such as deathtouch, and some initial mechanics have been phased out altogether, namely mana burn
Each player puts all artifact, creature, land, and planeswalker cards revealed this way onto the battlefield, then does the same for enchantment cards, then puts all cards revealed this way that weren't put onto the battlefield on the bottom of their library in any order
It's easy to assemble with detailed instructions
Retrieved November 24, 2020
Wizards of the Coast was kind enough to invite me this week to an online event where we got to try out Dominaria United on MTG Arena early for 24 hours