Cheapest priced copy (Final Fantasy): $0.35 at Card Kingdom, near mint, their price list as of .
Quistis Trepe 
Legendary Creature — Human Wizard · 2/2 · Uncommon · Final Fantasy · #440
Blue Magic — When Quistis Trepe enters, you may cast target instant or sorcery card from a graveyard, and mana of any type can be spent to cast that spell. If that spell would be put into a graveyard, exile it instead.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
2 printings · $0.35 to $59.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Final Fantasy | 66 | Uncommon | $0.35 | $0.49 |
| Final Fantasy | 440 | Uncommon | $2.79 | $59.99 |
One ruling from Wizards of the Coast
- 6 June 2025You choose whether to cast the target instant or sorcery card as Quistis Trepe's triggered ability resolves. If you do, you do so as part of the resolution of that ability. You can't wait to cast it later in the turn. Timing restrictions based on the card's types are ignored.