Cheapest priced copy (Edge of Eternities Commander): $0.99 at Card Kingdom, near mint, their price list as of .
Korvold, Fae-Cursed King 
Legendary Creature — Dragon Noble · 4/4 · Mythic · Throne of Eldraine · #329
Flying
Whenever Korvold enters or attacks, sacrifice another permanent.
Whenever you sacrifice a permanent, put a +1/+1 counter on Korvold and draw a card.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
7 printings · $0.99 to $57.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Throne of Eldraine | 329 | Mythic | $3.49 | $2.49 |
| Edge of Eternities Commander | 120 | Mythic | $0.99 | — |
| Year of the Dragon 2024 | 6 | Mythic | — | $57.99Out of stock |
| The List | ELD-329 | Mythic | $1.99 | — |
| The List | EOC-120 | Mythic | — | — |
| Secret Lair Drop | 1625 | Mythic | $32.99 | $34.99Out of stock |
| Secret Lair Drop | 2761 | Mythic | $20.99 | $29.99 |
5 rulings from Wizards of the Coast
- 4 October 2019If you sacrifice a permanent as part of a spell or activated ability's cost, Korvold's last ability will resolve before that spell or ability.
- 4 October 2019If you sacrifice Korvold, its last ability triggers. You won't put a +1/+1 counter on anything, but you'll draw a card.
- 4 October 2019A legendary permanent that is put into a graveyard because of the "legend rule" isn't sacrificed.
- 4 October 2019Korvold's last ability is a triggered ability, not an activated ability. It doesn't allow you to sacrifice a permanent whenever you want; rather, you need some other way of sacrificing permanents, such as Korvold's first triggered ability.
- 4 October 2019If you somehow control no other permanents, you can attack with Korvold. You won't sacrifice anything, and there's no penalty for being unable to do so.