Because Battles are a new permanent type there are relatively few cards that can interact with them
Final Fantasy has rather decent artifact support, which means youre effectively getting a 1/4, a 3+/3+, a mana engine, and a mana sink all for one card
Bestow is different and has your back in two ways: First, if the Aura spell ends up having an illegal target, rather than not resolving like other Aura spells would, Aura spells with bestow will instead stop being Aura spells, go back to being enchantment creature spells, and continue to resolve
With pirate versions of classic characters, new synergy options, and actions and locations that fit the theme, which of the cards from this set stand out as the best