Wall of text Imminent,

Hello, I've been playing cEDH for a while now as i Don' have a karador deck have planned on making one but know metas pretty well. Now I will be generalizing Metas I see and know from experience playing against various types of cEDh decks. First on your lands I think 38 is a few too many i play The Gitrog Monster with 33-36 lands (depending on the cuts i Make). The extra mana producing lands like Ancient Tomb are good generally so those are fine to keep in. However buddy lands like Woodland Cemetery can end up holding you back from an explosive first turn. Finally the Last land is Urborg, Tomb of Yawgmoth This will help storm decks that require specific colors to be tapped otherwise they will peter out due to not being able to cast the right spells they may draw into but that will allow them to use any mana they want for black. Your creature base is good and you have the boonweaver combo naturally but you are missing creature ramp besides the Birds of Paradise and Elves of Deep Shadow you are already using, such as Avacyn's Pilgrim Llanowar Elves Fyndhorn Elves and Elvish Mystic. They give 1 mana for 1 mana even though they dont have instant gratification due to summoning sickness they are still good and vital for a turn two Buried Alive to setup the combo depending on your hand. Now for answers in your creature base the numbe rone thing working against is graveyard hate like Rest in Peace run in stax and especially zur stax Nihil Spellbomb run in storm decks like Kess, Dissident Mage and Zur the Enchanter which is just to name a few. So we need an answer and yes spells work just fine but we are playing a reanimate deck so something that we can get back in case we need another answer is nice. Thus bring me too Caustic Caterpillar and Reclamation Sage while i would suggest the first the later works well too just two more mana to cost or get with Green Sun's Zenith. I believe you have a good choice in enchantments However Phyrexian Arena is a Little slow in our format I would consider cutting it for something like Dark Confidant due to it being cheaper and faster even though it may hurt more. Also In the case of your combo pieces being exiled due to a mill effect or general graveyard hate I would suggest adding insurance known as Pull from Eternity and Riftsweeper. For artifact ramp I think it wouldn't hurt to add Golgari Signet Selesnya Signet and Orzhov Signet for color fixing as well as netting one mana after activation. as well as cutting Chromatic Lantern due to it being 3 mana and you having plenty of dual lands in your deck. Also adding Green Sun's Zenith and Arbor Elf for a turn one two land play is quite nice as well as it acting as a tutor for another creature. I'm not gonna touch too much on your spells since Im not too familiar with how good things like Cataclysm are in your cedh play group or how it acts in general it seems good on paper but i can't say but adding Noxious Revival would be good since its a free instant that allows you to before your turn put a combo piece that got countered or destroyed on top of your library to draw it for turn to recast. This way you don't have to just rely on a six drop aka Sun Titan alone to get those back for you.