So, my first thoughts are you need more ramp via artifacts. You've got a pretty costly commander if things aren't going your way which, if your opponents are any good, will be the case. Having ramp, in general, is always a bonus. It just lets you go off quicker. The next thing I see is you have several high cost spirits in your list that don't really impact the board when they hit. With Karador's ability, I'd assume you'd enjoy a critical mass of low-cost spirits that you can easily sacrifice in large numbers for the purpose of casting your commander. I'd work on lowering your overall mana curve as much as possible. My next thought is: why aren't you running more board wipes? You really shouldn't mind your own stuff getting blown up, considering the intent of the deck. You're also in reanimator colors. So, I'd invest in more traditional board wipes like Damnation and Wrath of God over things like Crippling Fear. I also feel like you have some fat spells that don't really warrant their high casting cost and would fall into the category of "win more." I'd consider running as low to the ground as possible and focus on recurring value, since your commander lets you loop your creature etbs. I see you're on a Pod game plan, but I still feel like you're running way too many 5+ mana value creatures that don't really have a whole lot of presence when they hit the field. Just my two cents that I promised I'd give you!

Also:

Consecrated Sphinx

Mortify

Can't forget these!

Okay. So, I think you should really lean into the control/combo shell. This deck could use combos like Sanguine Bond and Exquisite Blood, with some added redundancy in the forms of Vito, Thorn of the Dusk Rose and Marauding Blight-Priest, or Mikaeus, the Unhallowed and Triskelion to close out the game. In order to accomplish this, I think you should cut a ton of the creatures and really lean into board wipes, control spells, and resource denial.

Things like:

Arterial Flow

The Meathook Massacre

Dovin's Veto

Spell Pierce

Necropotence

Ghostly Prison

Propaganda

Revenge of Ravens

Damnation

Wrath of God

Supreme Verdict

Time Wipe

Counterspell

Mana Drain

Rhystic Study

Smothering Tithe

Sheoldred, the Apocalypse

Gray Merchant of Asphodel

Vampiric Tutor

Demonic Tutor

Search for Glory

Idyllic Tutor

Enlightened Tutor

Mystical Tutor

Cyclonic Rift

Murderous Rider

Feed the Swarm

Infernal Grasp

Fierce Guardianship

Deadly Rollick

Fateful Absence

Underworld Dreams

Ob Nixilis, the Hate-Twisted

Windfall

Solve the Equation

Baleful Strix

Drown in the Loch

Mana Leak

Professor Onyx

Narset, Parter of Veils

Nihil Spellbomb

Arcane Signet

Azorius Signet

Orzhov Signet

Dimir Signet

Talisman of Dominance

Talisman of Progress

Esper Sentinel

Lion Sash

Swords to Plowshares

Deep Gnome Terramancer

Archivist of Oghma

Teferi's Protection

Teferi, Hero of Dominaria

Teferi, Time Raveler

Teferi, Master of Time

Dig Through Time

Drannith Magistrate

Malevolent Hermit  ^Flip

Aven Mindcensor

Hushbringer

Aura of Silence

Sea Gate Restoration  ^Flip

Negate

Sphinx's Revelation

Authority of the Consuls

On Thin Ice

Generous Gift

Ponder

Gitaxian Probe

Brainstorm

Gadwick, the Wizened

The Magic Mirror

Echo of Eons

Narset's Reversal

Swift Reconfiguration

Land Tax

Blind Obedience

Darksteel Mutation

Grasp of Fate

Silence

Farewell

Jace, the Mind Sculptor

You could also do cute stuff like Phyrexian Unlife + Solemnity, giving yourself time to wipe the board again or go for the win with Peer into the Abyss. You should also consider taking a look at your mana base.

I'd suggest going for some fetches, checks, and shocks like:

Flooded Strand

Polluted Delta

Marsh Flats

Hallowed Fountain

Glacial Fortress

Watery Grave

Drowned Catacomb

Godless Shrine

Isolated Chapel

Deserted Beach

Shattered Sanctum

Shipwreck Marsh

Command Tower

You also have way too many plains right now. Even before you get the lands I just named, you should cut 6 Plains for 4 Swamp and 2 Island.

I know I've given you a lot of suggestions. I think if you tried putting a list together with all the cards I named, plus some of the bangers from your current list and you'd have a badass deck! Don't worry about trying to do all that right now, though. See which look most appealing/are in your price range and add those first. A lot of these should be long term goals!

Don't tell Rett I gave you so many suggestions XD

-Blake

Atarka's Command, Tibalt, Rakish Instigator, and Leyline of Punishment are all good ways to keep your friend from gaining life from pinging you, then you can bonk him with dragons to the dome.

Orbs of Warding and Witchbane Orb are both excellent for giving you hexproof, making him unable to target you with his Commander's ability.

Three Visits and Farseek are great ramp spells that are pretty cheap that can replace some of your more expensive ramp. I'd also definitely advise picking up the Talisman of Unity in your maybe board.

You have a good density of creatures, in particular your dragons. I'd consider cutting some of the higher cost ones that have no immediate impact on the board to sub out for things like Old Gnawbone, Dragon Tempest, Dragonlord's Servant, Utvara Hellkite and Goldspan Dragon, though. These are things that help your gameplan (Dragon storm) and have immediate impact on the board. Some of those are kinda spensive, but #longtermgoals. Shared Animosity is also a nuts card in tribal decks.

Love,

Poppa Blake