Cheapest priced copy (Dominaria United): $0.49 at Card Kingdom, near mint, their price list as of .
Herd Migration 
Sorcery · Rare · Dominaria United · #165
Domain — Create a 3/3 green Beast creature token for each basic land type among lands you control.
{1}{G}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle. You gain 3 life.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dominaria United | 165 | Rare | $0.49 | $0.49 |
| Dominaria United | 413 | Rare | $0.49 | $0.49 |
| Dominaria United | 429 | Rare | — | $0.49 |
| Dominaria United Promos | 165p | Rare | $0.49 | $0.49 |
| Dominaria United Promos | 165s | Rare | — | $0.49 |
2 rulings from Wizards of the Coast
- 9 September 2022The basic land types are Plains, Island, Swamp, Mountain, and Forest. Land types other than basic land types (such as Desert) don't contribute to domain abilities.
- 9 September 2022Domain abilities count the number of basic land types among lands you control, not how many lands you control or how many of any type.