Frankly, I would just like to see a few more of these creatures show up from time to time, still retaining some level of specialness while also being adapted to the current world of Magic by stapling keywords like Prowess and Menace to a body, possibly as a subset of the shapeshifter tribe that arent just Clone
Reanimating is all about getting more out of the spell than what you put into it
This idea has been brewing a while.) The history and evolution of the Elder Dragon Highlander format went a certain wayfrom Elder Dragon Legend Wars in The Duelist to the Alaska Rules where a legendary creature from Legends had to be the general, all the way to the modern rules where any legendary creature can be a Commanderbut from my perspective, where I arrived at the format while it was well into maturity, I dont find anything particularly inviolable about the rule requiring commanders to be legendary
Sicarian Infiltrator is one of the best creatures to showcase this mechanic
But isn't that the point of it being Beyond Universe
check out what that means in our guide to Storyborn, Dreamborn and Floodborn characters