The passive alone is useful, and it also allows you to get a second use out of a creature, whether because it has a good enters effect, or because it hits hard
Pumping on Mishras Bauble and not just instants and sorceries is a big deal, too, and plotting will also come up in Modern some of the time just to tax your opponents mana more when you expect that they have a Fatal Push or Lightning Bolt at the ready
Matt_s Wizards of the Coast Black Star Promos set is an impressive 79% complete with all cards graded CGC 8 or higher, including three CGC Pristine 10s
The desire to share this has simply been burning within me
In addition to forcing each player to skip their discard phase, Anvil of Bagardan grants each player an additional draw at the beginning of their draw phase, but then they must choose and discard a card from their hand, offering those playing with graveyard shenanigans the free discard outlet they would have gotten at the end of the turn but now just at the beginning, meaning they could take advantage of it during their respective turns
Thus it looks like cards are inserted altenatingly from each of the two sheets, and that the character rares (marked in black) are inserted separately and were thus printed on a separate sheet, which due to the cards plain yellow borders I am assuming was a 11x11 sheet