If you could use Panharmonicon as your Commander, then that would be Yarok, the Desecrated.
It has already been called the eternal partner of Muldrotha, another staple Commander in Sultai. That alone makes it a very tasty piece of cardboard, and the ability to trigger the ETB effects of all permanents without excpetion is getting a lot of attention these days.
If Yarok goes beyond the EDH formats, and breaks in Standard or Modern, then it will get a serious price boost. Otherwise, it'll settle at around $10 mark.