That deck is great.I think 4 tendrills is so much and I use now 3 tendrills and 1 lotus petal.

-Blast: brainstrorm,metchant,gush,ponder and flash are restricted.Then,blast will not have the same effect than before unless you play against painter.

-As thouse cards are resricted,blue decks will be slower than before.Now we have not brainstrom-merchant-echoing.Then,aggro decks may back.This is related with blast(blast against aggro...),although we have to wait to see the metagame.

I type my purpose:

Repeal Tendrills

15 Lands

3-Polluted delta
2-Flooded strand
5-Island
3-Underground sea
1-Library of alexandria
1-Tolarian academy

1 Creature

1-Darksteel colosus

44 Other spells

1-Ancestral recall
1-Black lotus
1-Mox jet
1-Mox sapphire
1-Mox emerald
1-Mox pearl
1-Mox ruby
1-Time walk
4-Force of will
4-Mana drain
4-Thirst for knowledge
2-Intuition
1-Brainstorm
4-Accumulated knowledge
1-Demonic tutor
1-Vampiric tutor
1-Mystical tutor 
1-Sol ring
1-Mana vault
1-Mana crypt
1-Lotus petal
1-Chain of vapor
1-Tinker
1-Tendrills of agony
1-Fact or fiction
1-Yagwmoth's will
3-Repeal
1-Hurkyll's recall
1-Merchant Scroll

Sideboard

4-Leyline of the void
2-Pithing needle
2-Engineered explosives
1-Hurkylls recall
1-Rebuild
3-Dark confidant
2-Extirpate

Now repeal is back to stop aggro decks and give us extra cards in the 1º/2º turn.Once thouse turns has gone,we have thirst for knoledge,intuition,fact...when the deck is already working well.