Well, that's fine and dandy and all, but there's a reason I explicitly asked for reasons and "suggestions on what cards to cut if I'm going to put in a certain card". Since this decklist is pretty much solid as is, I need good reasons why to put things in, good reasons to take things out, and I need to know what I should take out to put in suggested cards. This isn't Vintage Shops so I personally don't understand why that's relevant to the deck.

So, I'm wondering why you elected to have Leonin Arbiter over Aven Mindcensor, or not both? Absolutely critical to shut down searches for answers while you are getting set up. Flash, Flying, absolute search block is maybe better than a tax that can be planned around. If I were to recommend a replacement, it would be Eldrazi Conscription, because it's a super good card that doesn't necessarily fit the strategy of the deck.

Maybe change Journey to Nowhere for Prison Term

Keeping Eldrazi Conscription? Then you probably want Open the Armory as well

Did you ever have Yosei, the Morning Star in the deck?

I prefer Journey to Nowhere since there're a fair number of decks in my playgroup with sac engines like Ashnod's Altar so I want to completely deny them the creature instead of giving them even more reason to just sac something.

As for Open the Armory, it's nice, but I don't know what to remove for it. Eldrazi Conscription is another finisher that can turn any creature into a big threat, plus I already have one so it's staying in for now at least.

Yosei, the Morning Star is just too slow for what he does. Sure he makes someone skip their untap step and lets me tap all of their stuff, but every deck that plays green here (which is 80-90% of the decks) runs Seedborn Muse and gets it out consistently so it would have little to no effect.

I have considered Aven Mindcensor before, but other white decks in the group play it to very little effect. It gets removed before it can really interfere with anything people do, so it's really good for just messing with one tutor which doesn't matter.

acbooster I like your Thalia deck a lot