Im definitely always in favor of cards that can punish the prevalence of green ramp and this one offers a tangible reward in the form of your own temporary mana acceleration
As long as neither player is manipulating their library or using their graveyard, using a Millstone does nothing but reveal information until the player being milled runs out of cards, but it took more explanation than you can possibly imagine to make players understand this
Cursed tomes, libraries, and book-devouring monsters are common features of card art and accompanying stories
Outside of Standard, there are several other formats that players can explore in Magic: The Gathering , including Modern that encompasses many of the older sets, and the free-for-all format Commander
A 1/4 with ward 1 defends itself well, and just by attacking and conniving, you can boost Raffine and other creatures you control, and fill your graveyard for shenanigans and value
For context, that means each pack in the box goes from $5.49 down to $4.66