Unlike the broader global market, Japanese cards often debut first, giving collectors an edge in acquiring new designs
Yawgmoth, Thran Physician No matter how much the praetors of New Phyrexia tried to emulate the glory of the Father of Machines, its honestly impossible for any MTG villain to be a more iconic leader to Phyrexia than Yawgmoth himself
Since Zirda, the Dawnwaker only cares about permanents, it could show up in a deck that is mostly (or exclusively) spells (people have mentioned this as a possibility in Vintage, where some decks incidentally meet Zirda, the Dawnwaker's restriction, although whether or not getting a random 3/3 in hand to start the game is worth a sideboard slot remains to be seen)
The power of the card for its cost but not concerning their different colours must be taken into account
If a player would draw a card, he or she reveals it instead