Cheapest priced copy (Duskmourn: House of Horror): $0.35 at Card Kingdom, near mint, their price list as of .
Rootwise Survivor 
Creature — Human Survivor · 3/4 · Uncommon · Duskmourn: House of Horror · #196
Haste
Survival — At the beginning of your second main phase, if this creature is tapped, put three +1/+1 counters on up to one target land you control. That land becomes a 0/0 Elemental creature in addition to its other types. It gains haste until your next turn.
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 | 196 | Uncommon | $0.35 | $0.49 |
5 rulings from Wizards of the Coast
- 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 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 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 2024Rootwise Survivor's last ability doesn't have a duration, which means the land remains a creature indefinitely.
- 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.