Edge whitening, corner wear, and centering (how even the borders are on each side) are the raw ingredients of the condition estimate, so cropped edges mean a vaguer value range
Your guess is as good as mine whether hell eventually show up in a Commander product
The loop with any graveyard recursion ETB can be game winning so i would consider running Mnemonic Wall to find it more consistently
Notably, a noncreature card on the battlefield that becomes a creature and then dies (such as an animated land) won't cause this ability to trigger
If two players' creatures are exiled this way, start with the player whose turn it is
Now, it can still just straight up die to lots of removal, but damage-based removal will pretty much be off the table, so that helps