I think it will mostly see play in decks aimed more at the moderate competition level, not at the highest level of competition, where there are decks with capabilities to easily dish out damage that dont rely on a character questing
Lifegain Its not well-supported, but there are a couple of lifegain payoffs in the set like Aerith Gainsborough and Minwu, White Mage
While every other FF is represented in the general boosters and the general set of cards, the sprawling nature of Commander Decks means that the four FFs that have a Commander Deck themed around them naturally have a huge advantage - their characters, stories, and worlds are far more heavily represented than the others
Then, you get paid off by turning Exdeath into Neo Exdeath, Dimension's End and absolutely going to town
Final Fantasy has been my favorite game series since I got Final Fantasy 8 Platinum on PS1 many, many years ago
The good news is that there are ways that, while not guaranteed, can help you identify potential counterfeits