This deck looks like it would be quite annoying to play against. You might want to add a couple more creatures though.

Felidar Sovereign ?

Yeah I could but test of endurance is enough for the win. The backup win is Exquisite Blood + Sanguine Bond . The creatures I do run are for card draw, counter spell Glen Elendra Archmage , or counter spell main phase protection Grand Abolisher . I just hate being vulnerable to all my board wipes and others, I am thinking of running more permission spells and wrath effects, Damnation , Wrath of God , Counterspell , Flusterstorm .

I took your advice and found another creature to run that I should have been using already. I have everything in the acquire board except for Academy Rector . Oblivion Ring has been too slow and not necessarily permanently solving the problem, even a Revoke Existence is better at 1 less cost and same sorcery speed on targets that I mainly use it for. The hardest card I think to cut which hasn't done anything for me yet would be Greater Auramancy , with things like Krosan Grip and Abrupt Decay running around maybe I should keep it.

Sorry I meant I have everything in the maybe board except the Academy Rector , which is in the Acquire Board.

Academy Rector acquired, such a fun card. A tutor that puts into play is always good.

Why no Sphere of Safety ? It'll add quite a lot of late game stability.

Bitterblossom is a lot of fun with your commander.

Breathstealer's Crypt would be great since you run so few creatures.

Greater Auramancy could be useful in here.

Moat and Humility would work really well in here, since you don't really win with creature damage.

Omniscience is fun with any deck that has a lot of permanents and card draw.

Sigil of the Empty Throne could be another win-con. Or Luminarch Ascension .

Looks like a fun deck, hope some of my suggestions help :)

Ah well I don't use sphere of safety because of cost, I like to keep the pillow enchantments around 3-4 max. Greater Auramancy is a card I like to use for sure. Eh I am not too worried about second win condition honestly. Bitterblossom is a decent idea it would just suck if I happened to have Night of Souls' Betrayal out. I would use Moat if the thing did not cost so much on top of everything else that is already in here otherwise it would be. Luminarch Ascension is really nice and something I used to use with Blue/White, however in this deck I prefer to go towards Ensnaring Bridge or Humility ASAP. It used to have Exquisite Blood + Sanguine Bond as a win except it was just too slow and ruined consistency for me. Even each one alone is good here though too. You just caught me in the middle of messing around with play testing, but thanks for checking it out.

I know Emrakul, the Aeons Torn is in the maybeboard, but I believe he's banned in commander unless you're going by duel commander rules.

Cool pillow fort deck! +1.

Couple things, you say Consecrated Sphinx didn't make the cut but you are running Phyrexian Arena, Well of Lost Dreams and Necropotence. I think the sphinx is better than all those cards even if he doesn't live more then a turn or two. It does look like your meta might run a lot of single target spells by the looks of your deck though.

Faith's Reward might be better than Second Sunrise.

In my pillow fort deck I avoid cards that keep my opponents from attacking entirely (Ensnaring Bridge) because I want them to attack...just not me!

Also I see you are trying to fit in Leyline of the Void, I don't hate on graveyards much but have you considered Rest in Peace instead?

Cards like Ponder and Brainstorm seem like a waste of a slot to me, one use spells that mostly just replace themselves. You have a Sensei's Divining Top!

Just some thoughts from a fellow pillow forter. Check out my pillow fort deck to see what I did with these colors! Dromar's Pillow Fort of Planeswalkers Dreams