Exquisite Blood - This combination with Sanguine Bond I will never play in any deck. Even though individually it would work extremely well in here. I feel this combination is too easy of a win, especially in Oloro, Ageless Ascetic. If you haven't guessed, I'm not a Spike.
Aura Thief - This card may be put back in the deck, but I'm taking it out for now. Aura Thief was a card that I just didn't play very often. It was the first choice to discard if I didn't have a maximum handsize, and the combination with Enchanted Evening was one that I rarely could pull off. Even with the instant speed combination that I get fairly often (Omniscience + Vedalken Orrery). If I feel like the deck becomes weaker after taking it out I'll consider putting it back in. I'm putting it here so people understand that I do know this is a combination, and it was in the deck for quite a long time.
Karmic Justice - This card was in the original list since the first time I made it. However, because I play Avacyn, Angel of Hope and Greater Auramancy, and the consistency of getting them, this card has become a little obsolete. Mass board wipes, other than Merciless Eviction, I don't worry about often because I can get them back with Replenish or I have Avacyn, Angel of Hope to make them indestructible. Of course, I also have the catch-all card Teferi's Protection when necessary. Targeted removal is generally shut off because I tend to try to get the shroud combo Greater Auramancy + Copy Enchantment/Clever Impersonator to protect my enchantments anyway. If the deck feels weaker because of this exclusion I will put it back in.
Starfield of Nyx - This is one that may come back eventually, but I rarely ever won with it, let alone cast it in general. I never wanted my entire board to be susceptible to board wipes, and now with Humility and Night of Souls' Betrayal in the deck this becomes even worst. We'll see if I miss it.
Leyline of the Void - Don't get me wrong, this card is great for what it does. However, I tend to search for Rest in Peace with consistency due to the combo it has with Energy Field. Leyline of the Void has simply become a card that I would play only because it was another enchantment. It may come back if graveyard strategies become more prevalent in my meta, but for now we'll see if I miss it.
Cloud Cover - Because of the printing of Estrid's Invocation it allows for a third copy effect to ensure that I can copy Greater Auramancy to protect my enchantments. I'd rather have full protection, than bounce protection.
Helm of Obediance - I tried this combo to have an insta-win in long games or ones where I needed to "win out of nowhere." The problem with this is I draw a lot and have many tutors. I was willing to try this "infinite" combo because it didn't kill the entire table immediately, but it is still an infinite combo which I do not want in this particular deck.
Mirage Mirror - This card worked sometimes, but others it just sat on the board doing nothing. I'm taking it out and I'll see if I miss it.
Delaying Shield, Force Bubble, and Decree of Silence all combo with Solemnity which allows no damage to be done to me (and counter all of my opponents spells. At the current moment I don't believe the deck needs this combo as I have solid protection with Sphere of Safety and Rest in Peace/Energy Field. These have sufficed thus far.
Stasis and Smothering Tithe - I do own these if I ever want to make Oloro MEAN, but I'm just not at that place right now.
Karma - If they ever print a lifegain version of Fiery Emancipation I will ABSOLUTELY revisit putting this in here and put a bigger focus on lifegain.
Shark Typhoon, sigil of an empty throne, and Hallowed Haunting are just not the way I want to make Oloro, if that ever changes these are probably an auto-include.
Mindslaver/Academy Ruins lock was definitely a thought for the deck, but I'm not quite at a TRUE stax point...yet.
Mystic Remora - I draw enough so I don't feel like I need this and paying for it every turn.
Nettlevine Blight - I really tried to find a place for this because I do love it. It's just slow and there are very easy ways to just find a way to sac or kill whatever creature they decide to attach it to. It rarely continues beyond the first target.