Cheapest priced copy (Foundations Jumpstart): $0.35 at Card Kingdom, near mint, their price list as of .
Naiad of Hidden Coves 
Enchantment Creature — Nymph · 2/3 · Common · Theros Beyond Death · #56
During turns other than yours, spells you cast cost {1} less to cast.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations Jumpstart | 333 | Common | $0.35 | — |
| Theros Beyond Death | 56 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 8 November 2024To determine the total cost of a spell, start with the mana cost or alternative cost (such as a flashback cost) you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.