(This includes disguise, cloak, and in games involving older cards, morph and manifest, as well as a few other effects that turn cards face down.) Common methods for doing this include using markers or dice, or simply placing them in order on the battlefield
Witherbloom, the Balancer Affinity for creatures first showed up on a simple 4/4 with vigilance and that Argivian Phalanx costs two less mana than Witherbloom, the Balancer which is a stronger creature and grants a huge cost reduction and will straight up give you nearly free colorless instants and sorceries like Warping Wail or Skittering Invasion
#1 - Teval, the Balanced ScaleTeval, the Balanced Scale For several years, I've been tuning a Kamahl, Heart of KrosaKamahl, Heart of Krosa // Tormod, the DesecratorTormod, the Desecrator deck
Modern Horizons 2 reinforces that Wheels are the unhealthiest thing in Commander, with cards like Dauthi Voidwalker and Sanctifier en- Vec (and Gaeas Will, I suppose)
However, in competitive Magic: The Gathering play, there are likely better options available, such as more efficient creatures with similar abilities like Stuffy Doll or Boros Reckoner, which offer additional utility or resilience
You must run this in Madness, Discard Brews or Graveyard and Reanimation too, just toss in Monument of Endurance to draw from it outside of them since you can cast what you discard with madness