If you are buying for Commander, look at Modern Horizons 3, Commander Masters, FINAL FANTASY, Lorwyn Eclipsed and Secrets of Strixhaven
Silverquill Influence (White/Black) Aura control, make foes fight each other A blend of Goad and Enchanments, Killian, Decisive Mentor gets your opponents fighting each other while helping himself to more cards as your Aura creatures attack
So decklists using Liberty Prime tend to shrink the energy package in favor of pantsing up with equipment and auras and protection and counterspells
You can cloak anything with Vannifar, from spells to lands, effectively preventing you from ever having a dead draw
And all of it for free
Sauron works great with several cards from the Lord of the Rings set, which have a very high power level