Considering that these are the two most recent set releases as of the writing of this article, interest in this archetype for Commander purposes is understandable
Rarity, as the Element of Generosity, grants protection to others while also interacting with the "Rarity" of spells (super clever way to pun the name here)
Hive of the Eye Tyrant 8.5 This cycle appears to be quite the significant upgrade on the original mono coloured manlands from Urza's block (especially Spawning Pool)
The narrative element became stronger, as did the mechanical cohesion, as we see in narrative blocks like Ravnica and Innistrad
(2018-01-19) For game purposes, your new teammate becomes the owner of the cards you give them for their library, hand, and permanents
It also makes infinite tokens with Ivy Lane Denizen, which is neat