Cheapest priced copy (Phyrexia: All Will Be One Commander): $0.69 at Card Kingdom, near mint, their price list as of .
Emeria Angel 
Creature — Angel · 3/3 · Rare · The List · #ZEN-11
Flying
Landfall — Whenever a land you control enters, you may create a 1/1 white Bird creature token with flying.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
9 printings · $0.69 to $84.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| DCI Promos | 35 | Rare | — | $84.99 |
| Iconic Masters | 20 | Rare | $0.79 | $7.99 |
| March of the Machine Commander | 183 | Rare | $0.79 | — |
| Phyrexia: All Will Be One Commander | 65 | Rare | $0.69 | — |
| The List | ZEN-11 | Rare | $3.49 | — |
| Starter Commander Decks | 21 | Rare | $0.69 | — |
| Tarkir: Dragonstorm Commander | 114 | Rare | $0.69 | — |
| Zendikar | 11 | Rare | $0.99 | $10.99 |
| Zendikar Rising Commander | 15 | Rare | $0.69 | — |
3 rulings from Wizards of the Coast
- 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 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 doesn't trigger if a permanent already on the battlefield becomes a land.