Really, the only reason I can think of that this isn't further up the list is that Pir and Toothy became so ubiquitous as a "you can't let this person play Magic " kind of commander pairing that people got a little sick of it and moved on to browner pastures
Koma is a two-turn clock on its own, while also protecting itself and dominating the battlefield
Something playing Marionette Master or Mayhem Devil, perhaps
Based on the latest market prices tracked on TCG Stacked, Crop Rotation is worth about $30.02 USD for a regular copy and $26.16 USD for a foil copy
Sheoldred, The Apocalypse Released in Dominaria United, Sheoldred wasn't going to rotate out in 2023 like the other cards in this list, but this Phyrexian Praetor has been a plague in Standard since her release
Saruman of Many Colors is another powerful Mythic Rare thats a definite build-around