Cheapest priced copy (Edge of Eternities): $0.49 at Card Kingdom, near mint, their price list as of .
Cosmogoyf 
Creature — Elemental Lhurgoyf · */1+* · Rare · Edge of Eternities Promos · #215p
Cosmogoyf's power is equal to the number of cards you own in exile and its toughness is equal to that number plus 1.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $0.49 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Edge of Eternities | 215 | Rare | $0.49 | $0.79 |
| Edge of Eternities | 313 | Rare | $0.99 | $2.49 |
| Edge of Eternities Promos | 215p | Rare | $0.49 | $0.79 |
| Edge of Eternities Promos | 215s | Rare | — | $1.29 |
One ruling from Wizards of the Coast
- 25 July 2025The ability that defines Cosmogoyf’s power and toughness works in all zones, not just the battlefield. If Cosmogoyf is in exile, its ability will count itself.