However, suppose you do lose the monarch
Playing an enchantment that probably doesnt impact the board the turn it comes down risks a big tempo loss, but the payoffs dont get much better than this
The worst Ive ever had was a single card that was listed as Near Mint and arrived looking more in the neighborhood of Lightly Played. You take that as a risk, but you get a huge variety of sellers and the prices that come with that level of competition
Cheap key cards: Gravecrawler, Cryptbreaker, Diregraf Captain, Undead Augur, Endless Ranks of the Dead, Plague Belcher
While that seems like a lot, even those will require more than three boxes to get a specific Showcase nonfoil rare
If a creature in combat has first strike or double strike, you can activate the library ninjutsu ability during the first-strike combat damage step