First of all, you don't have the 40 Wilds in the list. I want them in there, because that's fucking brilliant. It's the weakest of the most flexible lands, giving everyone plenty of access to fixing, but not very well. I love that. Your mana base also costs $500+ less than mine, which is awesome.
I also like to start with an excessive list and cut away at it, so I'm with you there.
That said, why does this pack have
Ray of Distortion right next to
Nesting Dragon? This pack has me choosing between the woefully inefficient
Mire's Malice against the ETB +1 tempo beast known as
Goblin Dark-Dwellers. I could find more, but the point is that your power level is all over the place. Take a look at your best card and worst card in each color and/or each cost and I'm sure you'll see a massive disparity.
Thraben Standard Bearer vs
Champion of the Parish are your two white 1 drops and there's no consideration at all in anyone's mind ever about which of those is the better card. You're gonna have standouts, but it needs to be within reason. You said something doesn't feel right, and I think a lot of your stronger cards are likely invalidating your weaker cards.
From there, you have a lot of cards that are secretly guild cards. That's to say that they only go in one deck, similar to how a multicolor card would.
Kor Spiritdancer is dead outside of an aura deck.
Restoration Specialist, on the other hand, gets to be a 2/1 for 2, which may or may not be appropriate for your format, I haven't delved into it that deeply. Assuming a 2/1 for 2 does some decent hitting, it's a serviceable attacker with upside in the right deck.
Keep in mind, some of these are appropriate to have around, but a high density of them ends up leaving fewer picks for all the decks. I personally am going to run an enchantments deck, but it's going to have just a handful of resilient payoffs in addition to swapping my removal suite to be more enchantment heavy rather than having a ton of cards that specifically need enchantments around.
I'm just gonna list the stuff I think is narrow in white as a start and you can decide how you feel about each card and probably expand from there.
Kor Spiritdancer, Soulcatcher, Auramancer, Favored of Iroas, Trusty Packbeast.
Also, Eternal Dragon just does such a better job than Noble Templar and Dearly Departed seems weird as a 6 mana white weenie support.
I know the list is intentionally bloated right now, so hopefully this will help get it down. I have a lot more individual cards to pick on, but I'll let you do the bulk of it before I continue. Ask yourself how your archetype support cards look in other decks. If they're a 0/2 for 2 or a 12 mana double counter (
Fervent Denial), you can probably do better. Looking at your list, you have done better (
Sinister Sabotage). So, I think you're too bloated and over extending on archetype support.
Good luck and I'll be back to check in.