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Pojo's Yu-Gi-Oh Card of the Day

 Book of Moon

Target 1 face-up monster on the field; change that target to face-down Defense Position.

Card Ratings
Traditional: 4.13
Advanced: 4.66 

Ratings are based on a 1 to 5 scale
1 being the worst. 3 is average. 5 is the highest rating.

Date Reviewed - May 4, 2012

Back to the main COTD Page


John Rocha

Today we are looking at a card that has been a staple in most decks sense it came out. Book of Moon stops just about everything your opponent is trying to do. It stops Synchro’s and Xyz summoning dead in its tracks by turning one of the two cards face down. Now that we can not activate ignition effects upon summoning, this means that we can Book the monster before our opponent can activate the monster’s effect.
To sum up what I just said; Dark Armed Dragon will not be able to destroy a card, Judgment Dragon will not be able to blow up the field, Red-Eyes Darkness Metal Dragon will not get to special summon, Brionac will not be able to bounce a card, Utopia will not be able to stop attacks, Stardust Dragon will not prevent destruction, Rescue Rabbit will not be able to remove itself, and Wind-Up Rat will not be able to special summon from the graveyard. I think you get the point.
Not only does it disrupt your opponent’s big push and strategy, but it also helps your strategy. You can use the flip effects of your monsters twice. Ryko and Morphing Jar get some great extra uses. You can also use the ignition effects of your monsters twice. Remove a card with Chaos Sorcerer or BLS, flip it face down to reset it, then flip it face up to use its effect again. Not too shabby!
There is a good reason that this card is limited and just about every deck plays Book of Moon. It may be a negative one the turn you play it, but the disruptive effect that it has on your opponents best laid plans is well worth it and more times than not, you make up for the negative one on the next turn.
Traditional: 5/5
Advanced: 5/5


Our last card of the week that has to with the recent change in the Fast Effect ruling is Book Of Moon. This quick play spell is very simple, target 1 face up monster on the field and turn it into face down defense position. Book of Moon is perhaps one of the most versatile cards ever. It can be used for both offensive and defensive purposes. Your opponent trying to destroy your monster using something like Fissure or Smashing Ground? Use Book of Moon on your own monster to protect it. Staring down a huge monster? Book'em Danno. But what ever Book of Moon can do, it will be mainly used to stop things like Xyz's, Synchros and other types/ A great card that really has founf its way back into the main deck of everyone's deck.
Traditional: 3.5
Advanced 5

Whew, it feels as if we're reviewing a bunch of old cards as if they were just recently unlimited.

Just like with Bottomless Trap Hole, in a given situation, Book of Moon almost always benefits from being able to stop a monster's effect right when your opponent summons a monster, but that's where similarities end.
Book of Moon, despite being an easily expired Spell, has been Limited for long periods of
time due to pure versatility (frankly I disagree that it has a stricter limitation than BTH or TTribute, but it's still good regardless). When a monster declares an attack, Book of Moon will block that attack. Most of the strong ATK monsters have lower DEF, and since that monster has technically declared an attack, it is not allowed to be Flip Summoned that turn, making it very vulnerable. Inzektor Dragonfly, Rescue Rabbit, or Wind-Up Hunter about to blow you to bits? Denied.
You should also know that you can only Xyz or Synchro with currently faceup monsters. Book of Moon ruins all of this. Since a Synchro or Xyz Summon usually happens with a freshly summoned monster, BoM that newly summoned monster, and since you can't change the battle position of a monster that was just summoned...no Flip Summoning.

BoM's defensive properties don't end there. Not even counting non-situational Trigger Effects, like Levair the Sea Dragon, BoM can block almost just about any monster's effect. The opponent tries to attack you with Utopia? Moon him, summon Cyber Dragon, and destroy that Utopia without fear of his Moon Wing Shield effect. Wind-Up Zenmaines walling you for all eternity? BoM solves the problem as Zenmaines is weakened when facedown (contrary to popular belief, Book of Moon will NOT make Zenmaines vulnerable to destruction by battle).
BoM carries many offensive properties as well, aside from putting monsters in a more vulnerable position. If a card is about to destroy one of yours on the condition it must be faceup, BoM will hide your monster into obscurity, saving it from potentially BTH or Dimensional Prison. Bound by Fiendish Chain? Remove that target. Is your life linked to Call of the Haunted or Safe Zone and Heavy Storm just came out? Cut the life link. You Flip Summoned Ryko, Lightsworn Hunter last turn and now he's being targeted by an attack. Flip your own Ryko down and watch his effect go off again! I summoned Inzektor Dragonfly last turn and you failed to destroy him. I use his effect this turn and gun down one of your cards with a Hornet. Moon my Dragonfly, Flip Summon him again, ignore the "once per turn" clause and blast you with a Hornet again, getting two searches off Dragonfly in the deal!
There's just too many uses for BoM. Being a Quickplay Spell with a simple yet unique effect makes it extremely, extremely versatile. If you think you could use a bit more attack protection or can benefit from Mooning your own monsters, definitely run one. Otherwise, it's extremely splashable, and you will find many, many times where you will find yourself in a situation where you think "Gee, I want that guy in facedown Defence Mode NOW." In comparison to BTH, BoM is limited as many players (not including me) feel the versatility makes it a lot better than outright destroying the monster. Regardless, both BTH and BoM are very, very good, and accounting for BoM's limiting over BTH's semilimiting, I guess they're about equal.
Traditional: 3/5
Advanced: 3.97/5
Aesthetics: 4/5 I really like the "Book" series, which is distinct from the "Books of Spell" series. I'd like a support card that extends to all "Book" cards. The design on Book of Moon is especially nice and I like how the background suggests it is floating on the Nile River. It is rather boring, however, how every "Book" card has almost exactly the same cover design.
Philosophy Corner: If people would prefer the shortcut over the longcut, because the longcut is less traveled upon for obvious reasons, but assuming life has no shortcuts, then what is truly the path less traveled?


Book of Moon
Quickplay Spell
"Target 1 face-up monster on the field; change that target to face-down Defense Position."
This one's a classic from the third booster series of Yugioh and has been an on-and-off staple card for most decks ever since. With the change in the rules, this card is now much more useful in preventing monster effects before they can get the chance to activate. If the opponent brings out Rescue Rabbit or Tour Guide from the Underworld, you can flip them face down and stop them from using their effects, thereby saving you a LOT of pain and suffering.
More than ever before, I expect to see this card used again as a counter to opponent's strategies but it's doubtful that we'll ever see it's restricted statis lifted because of all the ways to abuse your own cards with the effect. Still, it's well worth using in any deck out there...
Traditional: 4.75
Advanced: 4.75

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