tl;dr Curses felt bad and needed you to be both applying curses and keeping yourself alive. A lot of Sagas provide value while also giving you a board. blue/green is usually the grindy value colors so putting it in Mardu felt appropriate here. Especially since a lot of the sagas provide tokens or bring creatures from the graveyard for other archetypes
The cube needed an aggro deck and I was kinda unhappy with the existence of the Vehicle deck, so it got replaced. But in the spirit of the cube this isnt standard aggro but drawbacks aggro to really push the powers of the cards.
Temur Aristocrats had more of a ping theme that got removed through a combination of high Mana Values and not wanting red to have burn. Because of this a lot of its identity was lost and became more of a generic sacrifice support archetype. This restoration gives it a theme of sacrificing to make bigger bodies than what you sacrificed
I was pretty unhappy with the state of Jeskai Reanimator basically just being standard UR Artifact Reanimator. With the release of Disturb in Innistrad Midnight Hunt I felt there was enough UW graveyard stuff to warrant a rework into Embalm + Eternalize + Disturb for more of a self-recur Jeskai deck. Which should work a lot cleaner with Temur Aristocrats sharing two colors. This update is missing Patrician Geist, Covetous Castaway, and Overwhelmed Archivist from MID which will be added when possible
With the Reworking of Jeskai Reanimator to not be Artifact Reanimator the Artifact Lands no longer had a purpose. Theyre being swapped to Vivid lands to help slightly with fixing or splashing colors.
With changing Cursechantress into Mardu, Mardu counters needed a revision. Its been turned into Grixis Drawback Stompy as with the removal of combo Reanimator there was no longer a Big Mana Stompy feeling deck in the cube
Cube was really top heavy so I curved it down significantly
Gifts Ungiven as an entomb for reanimator
The rest is cleaning up the spellslinger archetype to actually have more cantrip spells rather than a jumble of card types. Removing some of the less desirable Spell Matter payoffs to make room
Forgot to add ways to put your stuff in the graveyard for the reanimator deck like a dummy. Should be solved now. Removing Fabricate was a mistake