It cares about more expensive spells rather than just cantrips and cheap interaction, so it plays a little differently than typical spellslinger decks
8 Add: Akiri, Fearless Voyager The Creature Can Ensure A Lot Of Card Draw Another upgrade card you should consider for the Limit Break Final Fantasy deck is Akiri, Fearless Voyager
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From those three cards, you can add one to your hand and put the remaining two on the bottom of your deck in any order - a clever way to find what you need, quickly
You can treat the four-stage summons like Ifrit and Summon: Fat Chocobo as creatures on your curve, while 3-stage summons are more akin to spells
There is much riding on the viability of poison as a win condition of a white-based control deck for some of these cards to have a meaningful impact on Standard