[89] Ray seems to only be concerned with Yuma when it come to the Barian's minions, as he went along with Yuma instead of staying to watch Reginald Kastle's Duel with a brainwashed Art Stanley
Affinity shows up for allies and fits the theme nicely on Allies at Last while converge appears on a scene card in Uncle's Musings
Another use is to use a Commander that discards cards or lands for effects that you can tap for, like Lord Windgrace
TLDR Cardsmith MTG is a quick way to mock up custom card ideas with real-looking layouts, so your designs read clearly across the table
As we've leaned into colored artifacts as being an evergreen thing, I do think there's a decent chance of seeing this little guy if we ever get back to New Phyrexia
There are plenty of people who learn about this game through Commander, exclusively play and discuss Commander, and never once trouble themselves with thoughts of other Limited or Constructed formats