Homelands added hungry Mist and Carapace, while Rabid Wombat, a Legends creature reprinted in Chronicles, was also added to the mix
Since it replaces itself while also potentially providing added utility, theres hardly a reason not to run it
I've written an article that covers tournament legality as much as is currently possible if you'd like to learn more
Naban's focus on Wizards makes it an ideal commander for Wizard tribal decks that are full of powerful triggerable abilities
And in case you thought the creepiness was over, heres Lazav, head of a shady gang of political assassins, monologuing about Rat: Lazav had known about Rat for over a decade and a half, since shortly after the girl was born
But working together with Wizards this time, I thought, 'Wow, this is amazing