We haven't gotten a look just yet at the potential rat commander card from this set, but you can take a gander at the Rat King, The Chaosbringer boss card from the set's Turtle Team-Up co-op bundle below
Their excellent shuffle feel enhances gameplay, making each game smooth and enjoyable
Add in Cheshire Cat, Not All There's and Kuzco, Temperamental Emperor's mutually assured destruction, Flynn Rider, Charming Rogue forcing you to discard (just one card), and Mother Gothel, Selfish Manipulator's ability to stop opponents questing, and Emerald decks will quickly become the most annoying to play against
Partner (You can have two commanders if both have partner.) Illustrated by Grzegorz Rutkowski Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
I personally pick Dina, Soul Steeper as an excellent off-ramp and can win with Exquisite Blood and a land like Festering Gulch, but I'm sure you can get more creative with near-infinite draw and a near-infinite graveyard