Put these two things together, and the most obvious answers are Uro, Titan of Natures Wrath and Kroxa, Titan of Deaths Hunger from Theros Beyond Death
While the full card list has not been unveiled just yet, there are some heavy hitters that are confirmed to be part of Shiny Treasure ex
The Five Best Commanders for Aristocrat Decks in Magic: The Gathering The Aristocrats archetype is a long-standing favorite in the Commander community, named after a classic Innistrad-era Standard deck that utilized sacrifice outlets like Cartel Aristocrat to grind out wins
While Muldrotha is a great commander, I just dont see it as part of this theme
And, as mentioned previously, 2 Willpower is a lot worse than 3
On top of that, it buffs your artifact creatures and heroes based on the number of artificers you control or have in the graveyard, which can scale fast in the right build