pattern - What is a Fantastical Word™?

_{This is in the spirit of the What is a Word/Phrase™ series started by JLee with a special brand of Phrase™ and Word™ puzzles.}

If a word conforms to a special rule, I call it a Fantastical Word™.

Use the following examples below to find the rule.

And, if you want to analyze, here is a CSV version:

Fantastical Words™,Not Fantastical Words™
AKIN,DISSIMILAR
SOAR,FALL
DIARY,JOURNAL
LETHAL,BENIGN
RATER,GRADER
GRADE,CATEGORY
BASIN,PLATE

ZESTER,PEELER
GATORS,CROCS
AMOUR,HATRED
COULD,SHOULD
FIAT,DENIAL
BARTER,PURCHASE
NORIA,DRAIN
VINIER,BRANCH
DRAW,ERASE
LADE,UNLOAD

MARANTA,COCONUT
FAERY,BUTTERFLY
JAUK,HURRY
YUAN,DOLLAR
KUKRI,RAPIER
SHEA,PEANUT
NARF,CONQUER
SOLVERS,PUZZLERS
DREADS,WELCOMED
SHEAR,GROW

OWNS,DESIRES
LONE,GROUPED
TONICS,POISON
ISOLEAD,SQUARE
VARUS,REGULAR

Answer

Each Fantastical Word:

Is an anagram of a Final Fantasy Character.

Explanation of each:

AKIN -> KAIN, the Dragoon from FF4
SOAR -> ROSA, white mage from FF4
DIARY -> RYDIA, summoner from FF4
LETHAL -> TELLAH, mage from FF4
RATER -> TERRA, from FF6
GRADE -> EDGAR, from FF6
BASIN -> SABIN, from FF6
ZESTER -> SETZER, from FF6

GATORS -> STRAGO, from FF6
AMOUR -> UMARO, from FF6
COULD -> CLOUD, from FF7
FIAT -> TIFA, from FF7
BARTER -> BARRET, from FF7
NORIA -> RINOA, from FF8
VINIER -> IRVINE, from FF8
DRAW -> WARD, from FF8
LADE -> ADEL, from FF8
MARANTA -> AMARANT, from FF9

FAERY -> FREYA, from FF9
JAUK -> KUJA, from FF9
YUAN -> YUNA, from FF10
KUKRI -> RIKKU, from FF10
SHEA -> ASHE, from FF12
NARF -> FRAN, from FF12
SOLVERS -> VOSSLER, from FF12
DREADS -> REDDAS, from FF12
SHEAR -> SERAH, from FF13
OWNS -> SNOW, from FF13

LONE -> NOEL, from FF13-2
TONICS -> NOCTIS, from FF15
ISOLEAD -> IEDOLAS, from FF15
VARUS -> RAVUS, from FF15