Morph is a two-ink card that can have anything shift onto it
Cards Between $5-10 The Fire Crystal Sword of the Animist Three Visits Primeval Titan Yuna, Grand Summoner Dark Confidant The Wind Crystal Jodah, the Unifier Genji Glove Nibelheim Aflame Loran of the Third Path Cryptic Command Aettir and Priwen Walking Ballista Command Beacon Tifa, Martial Artist The Earth Crystal Reanimate Y'shtola Rhul Ultima Weapon Cards Between $10-15 Dark Ritual Isshin, Two Heavens as One Tymna the Weaver Azusa, Lost but Seeking Diabolic Intent Vial Smasher the Fierce Lightning, Army of One Summon: Knights of the Round Kinnan, Bonder Prodigy Starting Town Final Fantasy Promos, Alternate Art, and More Final Fantasy is chock-full of alternate versions, with most characters having two versions, 10 of them having three and Cid, Timeless Artificer having 15

(Please see recent spikes based on my article for Yuna and Tidus for examples of money that could be made.) So lets talk about the implied relationship that stands head and above every other will-they-or-wont-they in gaming history, and the cards you want to add to their deck
With a cost of only one ink and the ability to challenge with two bonus strength, Captain Hook: Forceful Duelist is easy to deploy early in a game and can create a quick, aggressive front
For buying a box of Kaldheim, you could get an alternate art version of Realmwalker
Fabled | Lorcana | Rare Candy