They put them in whatever order they wish, and they do not need to reveal the order
There is a lot to consider when you take the steps to build your first Magic: The Gathering cEDH deck, with the first of those choices being which commander you are going to play
The key to designing these types of cards is just picking effects that are able to affect different targets
Very much a build around card, but the mana it generates is unreal especially if you can get around the legend rule with cards like Mirror Box or Sakashima of a Thousand Faces
If you handed me these 20 cards and told me to rank them myself, I'd perhaps produce a slightly different order (I rate Maul of the Skyclaves higher than most of the top 10, for instance)
Its still popular and flavorful these days, but weve also started seeing a little more of it used in new and interesting ways to fit the sets it appears in