Duneblast stands out as an expensive spell that cascades and protects Codie while destroying everything else, Ruinous Ultimatum doesnt mind Codies ramp, and a cascading Conflux seems like infinite value
Sometimes you'll need to consider the cost of paying one additional life vs
Terra, Magical Adept / Esper Terra Terra, Magical Adept, discounting the transformed side, is already a good 4/2 creature that mills and gives you a little value
Being an aristocrats deck, people will try to attack you to prevent you from going on one of your infamous long turns, so being able to blank a lethal attack is something more aristocrat players should consider
The Scarab God [Best Inevitability and Graveyard Control] The Scarab God excels at inevitability
when youre building decks, you can choose whichever basic lands are your favorite, or perhaps tied to the decks theme