Cheapest priced copy (Wilds of Eldraine): $5.99 at Card Kingdom, near mint, their price list as of .
Blossoming Tortoise 
Creature — Turtle · 3/3 · Mythic · Wilds of Eldraine · #163
Whenever this creature enters or attacks, mill three cards, then return a land card from your graveyard to the battlefield tapped.
Activated abilities of lands you control cost {1} less to activate.
Land creatures you control get +1/+1.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $5.99 to $17.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Wilds of Eldraine Promos | 163p | Mythic | $6.49 | $8.99 |
| Wilds of Eldraine Promos | 163s | Mythic | — | $11.99 |
| Wilds of Eldraine | 163 | Mythic | $5.99 | $6.99 |
| Wilds of Eldraine | 354 | Mythic | $9.49 | $17.99 |
2 rulings from Wizards of the Coast
- 1 September 2023Blossoming Tortoise's second ability affects only abilities of lands you control on the battlefield. The costs of activated abilities of land cards that work in other zones (such as cycling) won't be reduced.
- 1 September 2023Activated abilities contain a colon. They're generally written "[Cost]: [Effect]." Some keyword abilities are activated abilities and will have colons in their reminder text. Triggered abilities (starting with "when," "whenever," or "at") are unaffected by the cost reduction ability of Blossoming Tortoise.