Anytime you would make a token with Jinnie Fay, Jetmirs Second out, you can choose to have those tokens become either: 2/2 green Cat creature tokens with haste 3/1 green Dog creature tokens with vigilance Those tokens can replace everything from Food tokens to other creatures, but since it's a may effect you can control if they do or not
Best Black Token Commanders (Marrow-Gnawer and Ghoulcaller Gisa) Theres not a lot to say about mono-black token decks black simply has the most hoops to jump through to make a token strategy viable in Commander due to limited token support cards, few ways to give tokens haste, and usually requiring effects that tap your commander to mass produce tokens, adding an extra turn to the buildup process
And it is signed by Chandra Nalaar herself
Aang, at the Crossroads Destined Savior
A cursory Google search about the topic can uncork for you more ink spilled on the merits/faults of the Reserved List than you can possibly absorb, and at this point, theres no gain in adding to that puddle