These books jokes are just stupid =\
 
And yes, I don’t know anything about those mega-balance things from the great Blizzard.

@arrowghost  
Hearthstone isn’t MTG though. Magic has a lot of ways to get around or stop that, like counterspells, sacrificing the would-be-exiled creature so that it dies before the effect goes off, blinking the creature, etc. Hearthstone, as a game that only lets you act on your own turn, doesn’t have any of that counterplay to stop it.
 
Even “buffs” aren’t really a counter to this unless the buffs immediately cause lethal. Buffs fall solidly into a role as damage mitigation, as you’ve still lost your board and have no realistic way to stop all these Deathrattles from giving your opponent more ammunition. When only 1 out of 9 classes can even realistically consider countering a single card, your card needs serious reworking. That’s not even counting how nuts this is with Frost Lich Jaina, as you can play this and ping for a Water Elemental in the same turn! You get synergy with an already powerful and frequently run Mage card on top of a body on top of a full board clear.
 
Need I say more?

@Marioland  
Huge points, if I remember back in my MTG days, Wrath of God is 2+White+White (Condemnation is 2+Black+Black), cost of 4, very cheap, it buries all minions and deathrattles cannot be triggered.

Not many classes have buffs, and if Tarim (one specific Legendary minion and 1 out of 30 cards in the deck) is the only real counter, it’s proof that the card is too powerful (although aggro druids could counter with Savage Roar, and Shamans technuically have bloodlust. Then again, who runs Bloodlust right now?). You might as well just put text saying “If you cast this, win the game” at that point.
 
The only reason why Blizzard can get away with Twisting Nether and DOOM!!!!!!! is because they cost so much that you’re unable to get a large board out and use it as a massive swing. This card allows that swing in board control and then gives you a massive advantage in top of that by destroying the books.
 
Twisting Nether is borderline playable already in control-based Warlocks. A better version is seriously overkill, especially since Mages have such an advantage when killing 1 health creatures due to Frost Lich Jaina. This is way more powerful in Mage than Twisting is in Warlock, and probably better than Ultimate Infestation is in Druid.

@Marioland  
At least the card played has a body whereas the spell version eliminates the entire board, but of course be aware, once you played Twilight, a simple buff by Sunkeeper Tarim (even if the enemy has 2 or 3 minions turned to 0/1 books), then you’re still in trouble.
 
The deathrattle on the book maybe good, but only if you eliminate them quickly before they gets buffed.

@arrowghost  

 
My issue is that it’s way better than Twisting to the point of being ludicrous.

Definitely could use a good removal, it is the Mage version of Twisting Nether.

This already beats out Twisting Nether as a full board clear, and then it comes with a body?
 
That’s broken beyond all bounds.

@crazykhmr  
No, they get the books. Which have Deathrattle: Give your opponent a Primordial Glyph, it costs (1).  
Think Marin the Fox, mate.

Your opponent gets the spell? why would anyone play this?