idk about
Matzalantli, the Great Door. Considering it looks like you built the deck to fill and remove graveyard a lot, idk how to feel about a thing dependent on grave size.
I'm also not sure about
Sokenzan, Crucible of Defiance. Essentially a $5
mountain that sometimes make 2 1/1
spirits.
In general the mana base could use some work. You're only running 24 lands in a deck with avg cost being 3... compared to 37 creatures total. Love the amounts on everything else, but the recommended amount of lands for commander is 30.
Otherwise I like the phoenixes (despite not understanding why they were there at first), the flashback, the disturb is ok I guess, I love the
Shenanigans card that's hilarious, and I see you put Mondrak in there which makes sense but scares me.
Ultimately I'd think about leaning into a theme a little harder to remove a few card spaces and broaden the mana base, bc yeah you got like 3 cards kinda like
Serra Paragon but that doesn't fix needing to get to 5 mana to get Quintorious on the field and going anyways.