ETCHEDCheapest priced copy (Secret Lair Drop): $22.99 at Card Kingdom, foil, near mint, their price list as of .
Nissa, Resurgent Animist 
Legendary Creature — Elf Scout · 3/3 · Mythic · March of the Machine: The Aftermath · #122
Landfall — Whenever a land you control enters, add one mana of any color. Then if this is the second time this ability has resolved this turn, reveal cards from the top of your library until you reveal an Elf or Elemental card. Put that card into your hand and the rest on the bottom of your library in a random order.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
7 printings · $22.99 to $49.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine: The Aftermath | 22 | Mythic | $24.99 | $27.99 |
| March of the Machine: The Aftermath | 72 | Mythic | $24.99 | $34.99 |
| March of the Machine: The Aftermath | 122 | Mythic | — | — |
| March of the Machine: The Aftermath | 162 | Mythic | $34.99 | $44.99 |
| March of the Machine: The Aftermath Promos | 22p | Mythic | $24.99 | $49.99 |
| Planeswalker Championship Promos | 2025-2 | Mythic | — | — |
| Secret Lair Drop | 2658 | Mythic | — | $22.99 |
6 rulings from Wizards of the Coast
- 12 May 2023Each time the landfall ability resolves in a turn after the second time, you'll just add mana.
- 12 May 2023If you reveal your entire library and don't reveal an Elf or Elemental card, you'll put all revealed cards back in a random order. This uses the same physical action as shuffling, although it isn't technically a "shuffle."
- 12 May 2023Nissa's landfall ability isn't a mana ability, even though it causes you to add mana. It uses the stack and can be responded to.
- 8 November 2024Whenever a land you control enters, each landfall ability of the permanents you control will trigger. You can put them on the stack in any order. The last ability you put on the stack will be the first one to resolve (As a result, you can have those abilities resolve in the order of your choosing.).
- 8 November 2024A landfall ability triggers whenever a land you control enters for any reason. It triggers whenever you play a land, as well as whenever a spell or ability puts a land onto the battlefield under your control.
- 8 November 2024A landfall ability doesn't trigger if a permanent already on the battlefield becomes a land.