So this deck is delirium, plain and simple. It's not meant to be as explosive as B-G delirium, but rather to be controlling enough to get strong creatures onto the battlefield. To that end the deck has plenty of removal and draw spells, and a pretty even variety of all card types. I'm looking for any feedback for this deck or sideboard.
To enable delirium as quickly and consistently as possible, the deck runs a roughly equal number of each card type where possible.
Artifacts: Terrarion fixes mana and draws a card when it goes, regardless of how. Filigree Familiar gives life on entry and draws a card on exit.
Enchantments:Dead Weight gives a creature -2/-2, killing threats with low toughness or weakening large creatures. Vessel of Ephemera breaks slowly, but for five mana you can have 2 1/1 flying blockers. Strange Augmentation gives a creature +1/+1 normally or +3/+3 with delirium. It makes a spirit token equivalent to an angel, or a moorland drifter into a flying 5/5.
Sorceries:Painful Truths usually draws at least two cards, but with Terrarion in play can draw four cards for 3 life and 3 mana (3 from X = 3, and one from Terrarion sac). Descend upon the Sinful is your classic board wipe, but leaves behind a 4/4 flier with delirium.
Instants:Essence Extraction allows for a moderately cheap way to both stop attacking creatures and refill life. It can also be used to take out a copter before attack, so bonus. 4 Anguished Unmakings may seem excessive, but its non-descriminate targeting means that anything on your field, save for Emrakul, is gone. It also exiles, giving a plus against other delirium decks.
Creatures:
Planeswalkers:Honestly, I could have put Sorin in instead of Ob Nixilis, but Sorin is more difficult to cast and, though I have a lot of spells in the deck, the average CMC of spells is under 3. Ob Nixilis is also more efficient removal and his ult is more relevant to the cards in the deck. I'll probably sub in Sorin when Ob Nixilix rotates out, but for now I like Ob Nixilis in the deck more.
Update: I caved and put in Sorin. Better sustain
Lands: The deck runs a A playset of Concealed Courtyard and 2 Shambling Vents for fixing and for late-game life gain or chump-blocking. 2 Geier-Reach Sanitariums allow for looting, which can help delirium or get something out of your hand. 2 Evolving Wilds work easy delirium for the 3 Plains and 9 Swamps.
Sieboard:3 Grave Birthings against graveyard-focused strategies, because it shambles back a scion at instant speed and draws a card. 3 Kambals in the sideboard to go against burn or control decks. 3 Lost Legacy against anything that runs Emrakul. Another Ob Nixilis just because. 3 Stasis Snares because they're the only thing I have that stop Emrakul on entry. 2 To the Slaughter in case of Gideons or Nahiris
