Most decks can't get it back from the graveyard, so in most decks it's best it stay in the library and not the graveyard. Heck, 3rd from the top is only bad if you were going to be able to cast it within two turns anyway.
CotW is a method for ranking cards in increasing order of printability.
*"To YMTC it up" means to design cards that have value mostly from a design perspective. i.e. you would put them in a case under glass in your living room and visitors could remark upon the wonderful design principles, with nobody ever worring if the cards are annoying/pointless/confusing in actual play
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