Leyline of the Void, Rest in Peace or Ashiok, Dream Render for more gravehate or another Scavenging Ooze in the sideboard.

Damn you get to do FNMs? lucky +1

My first suggestion would be to take out your "Shock" 2020 lands. Thin some of your pain lands with Temples. Maybe add a couple Mazemind Tome or Spare Supplies . I'd try to add more Maul of the Skyclaves and some Valkyrie's Sword s.

I think Nahiri, Heir of the Ancients would be amazing since she's an all powerful Stoneforge Mystic .

Possibly add several boardwipes such as Shatter the Sky , Extinction Event , Doomskar , or Devastating Mastery whick reminds me you might think about some of the "Ultimatum's" as well.

Now, I think your Sideboard I have no idea. Maybe some Necropanther s or Venerable Warsinger s and a Nine Lives to start.

Minousmancer Are you aware this is a modern deck? Just curious, because all of your suggestions were standard legal and many of them seem somewhat suboptimal for modern

Well I guess I can't read, my apologies.

About the sideboard, maybe Fulminator Mage + Surgical Extraction instead of Lithoform Blight ? And Vanishing Verse for monocolor removal.

Hexdrinker , Tidehollow Sculler , and maybe Scavenging Ooze for the sideboard are all decent midrange creatures as well if you can fit them in.

I was out of the game for a after Innistrad block and got back into it in Theros Beyond Death. So I'm missing a few years of the card pool. Also the cards I'm suggesting mostly will be modern soon.

also new card Kaldra Compleat

MH2 is making me want to play Modern more than I could imagine especially the Rakdos.

@zapyourtumor

I should really go through and make a proper description for the deck one of these days. Lithoform Blight is better for me than Fulminator Mage because I can recur it with Lurrus if the opponent happens to have enchantment hate, and it's in there for Tron and Scapeshift match-ups which tend to side in hate anyway. Vanishing Verse is something I've been debating for a good while, but it's definitely going into the maybe pile. Hexdrinker and Tidehollow have been on the table for a good while, but I've never been particularly fond of them for what I'm trying to do. Scavenging Ooze is super strong and used to be in the list's main board actually, but eventually I found myself too green light to be able to sufficiently use him as a mana sink without having to play around too many factors. Nihil Spellbomb has felt way better for graveyard hate in this list, especially with Lurrus being able to bring it back if needed. Granted, he can bring back Scooze too, this is way less color dependent.

As for Kaldra Compleat it's something I've had my eye on from the moment it was spoiled. On the one hand it feels bad that I'll be running a 7-drop when I want Dark Confidant to be good, but on the other hand, it's a 5/5 swinging on T3. I'll be running it somewhere in the list once MH2 drops for sure. Sword of Hearth and Home has also caught my eye, allows for all sorts of flickering in the games where Yorion comes down and it says equipped creature has protection from Path to Exile .

Thank you for the suggestions!

@Minousmancer

I meant to reply to your comments way sooner. I'm going to be honest, almost every suggestion you gave makes me feel like you're just naming cards you like. Don't get me wrong, I appreciate that you took the time to give some suggestions, but honestly none of them were very good for my list. Especially considering many of them involved colors I'm not even running.