Cheapest priced copy (Duskmourn: House of Horror): $0.35 at Card Kingdom, near mint, their price list as of .
House Cartographer 
Creature — Human Scout Survivor · 2/2 · Uncommon · Duskmourn: House of Horror · #185
Survival — At the beginning of your second main phase, if this creature is tapped, reveal cards from the top of your library until you reveal a land card. Put that card into your hand and the rest on the bottom of your library in a random order.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Duskmourn: House of Horror | 185 | Uncommon | $0.35 | $0.49 |
5 rulings from Wizards of the Coast
- 20 September 2024If a creature's survival ability triggers but the creature leaves the battlefield before the ability resolves, use its tapped or untapped status as it last existed on the battlefield to determine whether or not the ability will do anything.
- 20 September 2024If a creature's survival ability triggers but that creature is untapped when the ability begins to resolve, that ability won't do anything.
- 20 September 2024Survival abilities (and other abilities that trigger at the beginning of your second main phase) will trigger at the beginning of the second main phase you take in a turn. They won't trigger during your third, fourth, or other additional main phases in a single turn, if effects somehow cause you to have more than two main phases.
- 20 September 2024If a creature with a survival ability isn't tapped when your second main phase begins, the ability won't trigger at all. You won't be able to tap it during your second main phase in time to have that ability trigger.
- 20 September 2024If you reveal your entire library and don't reveal a land card, you'll put all revealed cards back in a random order. Since you were never instructed to shuffle your library, abilities that trigger whenever a player shuffles their library won't trigger.