Cheapest priced copy (Final Fantasy): $0.59 at Card Kingdom, near mint, their price list as of .
Seymour Flux 
Legendary Creature — Spirit Avatar · 5/5 · Rare · Final Fantasy · #452
At the beginning of your upkeep, you may pay 1 life. If you do, draw a card and put a +1/+1 counter on Seymour Flux.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
2 printings · $0.59 to $16.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Final Fantasy | 452 | Rare | $1.49 | $16.99 |
| Final Fantasy | 558 | Rare | $0.59 | — |