I could show you a morph card, for example, and then play one on the next turn
Thantis, the Warweaver A lot of commanders are on this list because they incentivize quicker and more aggressive play, which can keep games from feeling overly long and boring
-1: Return target creature to its owner's hand
This could be a true toolbox tutor and allow you to have a way to get synergistic combo pieces like Kiki-Jiki, Mirror-Breaker and Acidic Slime rather than Kiki-Jiki and Zealous Conscripts in matches where your opponents couldn't handle a "fair" combo like that, or wrap the game up when doing so was either fair or necessary
If you're playing against a person that you know is playing Chaos Orb (which would be an incredibly rare sight given that the card is not only rare and expensive, but is also illegal in every format except for non-sanctioned games), then you could possibly take advantage of these quirks