This card is just nuts.
Simply pay X = 0 and you got yourself a Disperse with added card disadvantage for your opponent.
Plus, you can cast it in response to an opponent's search effect that makes him shuffle his library (e.g. a fetchland, which is a reasonably common occurence in multiple formats) and you basically get rid of the target for two mana.
Top top it all off, this is (yet another) ridiculous target for Isochron Scepter.
(Surprisingly enough despite being an X-spell, since you cast copies without paying for them.)
...Did I mention you can actually pay mana for 
to bury a threat a bit deeper in your opponent's library?
Oh, and once it's cast, as another advantageous side effect, you know what he's going to topdeck in that future turn.
So you might also prepare some more little shenanigans with effects like Counterbalance or cards with autocard multiverseid=... (see all)
Posted By:
Mode
(10/30/2013 9:56:50 AM)
This card can essentially say "destroy target nonland permanent" in some cases. For 2 mana. You just know this card is going to be $60 for a playset.
Posted By:
Continue
(10/30/2013 6:12:57 AM)
Really good. At its worst, it goes to the top of the library for two mana, which is really cheap for that effect.
Posted By:
SyntheticDreamer
(10/31/2013 6:29:24 PM)
I mean, dang. Azorius Charm is a great card and this card is pretty much strictly better (for that particular mode). You can use it to blank your opponent's spot removal/board wipes at the expense of a draw. And now you'll never feel safe cracking a fetch in the face of .
I hope to see some Legacy decks (mono-white control?) playing this with stuff like Path to Exile and Ghost Quarter.
Posted By:
MostlyLost
(10/31/2013 6:45:22 AM)
Two mana Time Ebb, with the bonus of hitting Artifacts, Enchantments, and Walkers, too. And at instant speed.
And if I really want to, I can pay a bit more and keep it away from my opponent longer.
Now that's a solid card.
Posted By:
JSSarfin
(10/29/2013 3:33:09 PM)
In response to your fetchland activation...
Posted By:
drpvfx
(10/29/2013 8:30:12 PM)
Ironically, doesn't work on Nori.
Posted By:
Cyberium
(10/30/2013 1:34:32 PM)
That's not Ironic at all, Norin is always EXPECTEDLY absent XD
Posted By:
DarthParallax
(11/1/2013 1:00:11 PM)
I don't understand why this is white.
Posted By:
DeckMechanic
(10/29/2013 3:56:28 PM)
I love this effect. But the name is kind of stupid and very unflavorful. I keep wanting to say "Unexpected Absense" which is a little less silly but still a very dull name for a spell.
Posted By:
1337vanguard
(11/4/2013 7:53:38 PM)