As mentioned, they're original decks with their own cards (and their own set code, FIC), with actually little overlap with the main Final Fantasy set
Throw in a handful of dual lands and some playable utility lands like Bojuka Bog and Geier Reach Sanitarium, and counting only rare lands and other lands worth over $1, and the average value of the land slot in Commander 2019 has roughly doubled since last year, with the Sultai Morph deck clearly leading the way thanks to the Battle for Zendikar dual lands and the Jeskai Flashback deck lagging behind with a surprisingly lackluster mana base (especially considering it's a three-color deck)
This can be incredibly helpful for getting rid of a Gaddock Teeg or a Meddling Mage naming Conflagrate
(Choose any number of permanents and/or players, then give each another counter of each kind already there.) When Cacophony Scamp dies, it deals damage equal to its power to any target
There is something classic about Angels and Dragons to the game that speak when you are bringing an aerial game to the casual table