Cheapest priced copy (The Lost Caverns of Ixalan): $5.49 at Card Kingdom, near mint, their price list as of .
Spelunking 
Enchantment · Uncommon · The Lost Caverns of Ixalan · #213
When this enchantment enters, draw a card, then you may put a land card from your hand onto the battlefield. If you put a Cave onto the battlefield this way, you gain 4 life.
Lands you control enter untapped.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $5.49 to $6.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Lost Caverns of Ixalan | 213 | Uncommon | $5.49 | $6.99 |
2 rulings from Wizards of the Coast
- 10 November 2023If Spelunking would enter the battlefield at the same time a land you control would enter the battlefield tapped, that land still enters the battlefield tapped.
- 10 November 2023If a land has an ability that says it enters the battlefield tapped, you choose the order in which that ability's effect and Spelunking's effect apply. This means you can choose to have the land enter tapped or untapped. If a land you control is simply put onto the battlefield tapped without a replacement effect being applied, it always enters untapped if you control Spelunking.