GIX, YAWGMOTH PRAETOR Two of the most important things in casual Commander these days are drawing plenty of cards, and surviving until the late game
I also love this with The Stick (Isochron Scepter), or casting everything from your library with Future Sight
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While there are a few creatures such as Sun Titan and Elesh Norn, Grand Cenobite that are more difficult to bring back with Ascend from Avernus, it has the upside of not reducing the power and toughness of every creature and makes it potentially profitable to leave Adeline herself in the graveyard to be reanimated without hindering her power and toughness and making her mostly useless
Any deck can play a colorless card, which leads to cards like Skullclamp and Reckoner Bankbuster catching bans for homogenizing Magic formats
While Honest RutsteinHonest Rutstein can get pricey quickly as the table kills him over and over again, there's also your companion in UmoriUmori as a beefy backup to keep you slinging down two-mana creatures for one (and even a few one-mana creatures for zero)