Even if Tifa Lockhart doesnt break out in the competitive scene, you should at least be prepared to fight against it on the Arena ladder
Barret Wallace is another nice addition here, both for its Equipment-themed attack trigger, and because Reach is always important in Limited for defending against flying creatures
The popularity of the franchise ensures that a portion of the player base wants to build this deck simply for the joy of the theme, keeping the card insulated from typical market crashes
Archazias Island will be released in the same way
As a target, Terra can recur some value on smaller boards, essentially getting back the card that was sacrificed to search for her
The idea is that the deck can return your characters to hand so you dont need to draw, but it isnt quite enough