The majority of them were chosen based on their strength in the standard competitive format, but a couple made the cut based solely on appearance
If it's a creature, it can't be regenerated this turn, and if it would die this turn, exile it instead
The final chapter transforms them into 5/5 creatures, and while this effect only lasts for a turn, its more than enough if you consider using it as your win condition
The Through the Ages bonus sheet includes older Final Fantasy concept art on skinned cards against similarly blank backgrounds, as we've already seen with Yuffie Kisaragi, a reprint of Yuriko, the Tiger's Shadow
There is no restriction on card type within the same deck
The article highlights several valuable cards from the set, including Last March of the Ents, Orcish Bowmasters, and The One Ring