Cheapest priced copy (Final Fantasy): $0.99 at Card Kingdom, near mint, their price list as of .
Jenova, Ancient Calamity 
Legendary Creature — Alien · 1/5 · Rare · Final Fantasy · #346
At the beginning of combat on your turn, put a number of +1/+1 counters equal to Jenova's power on up to one other target creature. That creature becomes a Mutant in addition to its other types.
Whenever a Mutant you control dies during your turn, you draw cards equal to its power.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $0.99 to $49.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Final Fantasy | 228 | Rare | $0.99 | $2.49 |
| Final Fantasy | 346 | Rare | $4.99 | $8.99 |
| Final Fantasy | 493 | Rare | $3.99 | $49.99 |
| Final Fantasy Promos | 228s | Rare | — | $37.99 |
3 rulings from Wizards of the Coast
- 6 June 2025If Jenova isn't on the battlefield at the time its first ability resolves, use Jenova's power as it last existed on the battlefield to determine how many counters to put on the target creature.
- 6 June 2025Use the power of the Mutant that died as it last existed on the battlefield to determine how many cards to draw with Jenova's last ability.
- 6 June 2025If Jenova dies at the same time as one or more Mutants you control, its last ability will trigger for each of those Mutants (including itself if it somehow became a mutant).