Disney has had a lot of failures in the game space, and even though this is very different in nature from something like Disney Infinity, the outcome could have been the same
Like most Magic: The Gathering cards, the value of Farewell depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Final Fantasy Commander)
If youre feeling extra gutsy, one play you can make if you sense a Shatterstorm coming is to load a bunch of modular counters onto a Nexus
I still to this day have books from that period where Im listing out Magic decks I want to make, or Im working on my own ideas for trading card games. A Warhammer 40K trading card game that Miller co-designed in 2001 with Luke Peterschmidt has roots in that era
If you want to spend a little more, you can also get one of three two-sided playmats, which is a nice touch as there are a fair number of double-sided cards in the Final Fantasy set