Cheapest priced copy (Tarkir: Dragonstorm): $1.79 at Card Kingdom, near mint, their price list as of .
Magmatic Hellkite 
Creature — Dragon · 4/5 · Rare · Tarkir: Dragonstorm · #111
Flying
When this creature enters, destroy target nonbasic land an opponent controls. Its controller searches their library for a basic land card, puts it onto the battlefield tapped with a stun counter on it, then shuffles. (If a permanent with a stun counter would become untapped, remove one from it instead.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $1.79 to $3.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tarkir: Dragonstorm Promos | 111p | Rare | $2.29 | $2.49 |
| Tarkir: Dragonstorm Promos | 111s | Rare | — | $2.49Out of stock |
| Tarkir: Dragonstorm | 111 | Rare | $1.79 | $1.99 |
| Tarkir: Dragonstorm | 301 | Rare | $2.79 | $3.49 |
2 rulings from Wizards of the Coast
- 4 April 2025If the target land is an illegal target as Magmatic Hellkite’s last ability tries to resolve, it won’t resolve and none of its effects will happen. No player will search their library for a basic land card.
- 4 April 2025As long as Magmatic Hellkite’s last ability resolves, the target land’s controller gets to search for a basic land card even if the target land wasn’t destroyed by the ability. This may happen because the land has indestructible.