Cheapest priced copy (Duskmourn: House of Horror): $9.99 at Card Kingdom, near mint, their price list as of .
Enduring Curiosity 
Enchantment Creature — Cat Glimmer · 4/3 · Rare · Duskmourn: House of Horror · #51
Flash
Whenever a creature you control deals combat damage to a player, draw a card.
When Enduring Curiosity dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
6 printings · $9.99 to $349.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duskmourn: House of Horror | 51 | Rare | $9.99 | $11.99 |
| Duskmourn: House of Horror | 371 | Rare | $11.99 | $15.99 |
| Duskmourn: House of Horror | 388 | Mythic | — | $79.99 |
| Duskmourn: House of Horror | 398 | Mythic | — | $349.99 |
| Duskmourn: House of Horror Promos | 51p | Rare | $9.99 | $11.99 |
| Duskmourn: House of Horror Promos | 51s | Rare | — | $16.99Out of stock |
3 rulings from Wizards of the Coast
- 20 September 2024Cat and Glimmer are both creature types. Enduring Curiosity won't have those creature types when its last ability returns it to the battlefield because it won't be a creature.
- 20 September 2024A token that's a copy of Enduring Curiosity won't return to the battlefield when its last ability resolves.
- 20 September 2024If a nontoken permanent that's a copy of Enduring Curiosity dies while it's a creature, it will return to the battlefield as an enchantment when its last ability resolves. It won't have any card types other than enchantment.