Cheapest priced copy (Duskmourn: House of Horror Promos): $4.99 at Card Kingdom, near mint, their price list as of .
Enduring Innocence 
Enchantment Creature — Sheep Glimmer · 2/1 · Rare · Duskmourn: House of Horror Promos · #6p
Lifelink
Whenever one or more other creatures you control with power 2 or less enter, draw a card. This ability triggers only once each turn.
When Enduring Innocence 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 · $4.99 to $329.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duskmourn: House of Horror | 6 | Rare | $5.49 | $6.99 |
| Duskmourn: House of Horror | 368 | Rare | $6.99 | $9.99 |
| Duskmourn: House of Horror | 386 | Mythic | — | $49.99 |
| Duskmourn: House of Horror | 396 | Mythic | — | $329.99 |
| Duskmourn: House of Horror Promos | 6p | Rare | $4.99 | $6.99 |
| Duskmourn: House of Horror Promos | 6s | Rare | — | $10.99 |
4 rulings from Wizards of the Coast
- 20 September 2024A token that's a copy of Enduring Innocence won't return to the battlefield when its last ability resolves.
- 20 September 2024If a nontoken permanent that's a copy of Enduring Innocence 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.
- 20 September 2024Enduring Innocence's second ability checks the power of the other creatures only at the moment they enter. If a creature enters with counters, those counters are included. If a creature's power is 2 or less when it enters but becomes greater than 2 while Enduring Innocence's second ability is still on the stack, you'll still draw a card when the ability resolves.
- 20 September 2024Sheep and Glimmer are both creature types. Enduring Innocence won't have those creature types when its last ability returns it to the battlefield because it won't be a creature.