Naiad of Hidden Coves 
Enchantment Creature — Nymph
$0.22 #10368 0.52 6.6 years
During turns other than yours, spells you cast cost 
less to cast.
less to cast.Click a line or tag to filter
Cards similar to Naiad of Hidden Coves expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Geyser Drake100%
$0.15↓#84980.432.4 years↓
"During turns other than yours, spells you cast cost less to cast."
less to cast."
Stone Calendar84%
$14.67↑#20270↓0.4832.1 years↑
"Spells you cast cost less to cast."
less to cast."
Memory Crystal80%
$2.14↑#23969↓0.6028.2 years↑
"Buyback costs cost less."
less."
Raging Battle Mouse76%
$0.24↑#122410.06↓3.0 years↓
"The second spell you cast each turn costs less to cast."
less to cast."
Highspire Bell-Ringer76%
$0.17↓#109950.17↓1.4 years↓
"The second spell you cast each turn costs less to cast."
less to cast."
Uthros Psionicist76%
$0.31↑#98250.23↓1.1 years↓
"The second spell you cast each turn costs less to cast."
less to cast."
Helm of Awakening76%
$1.51↑#1903↑0.36↓29.6 years↑
"Spells cost less to cast."
less to cast."
Hardened Berserker74%
$0.03↓#24046↓0.06↓11.4 years↑
"Whenever this creature attacks, the next spell you cast this turn costs less to cast."
less to cast."
Spellwild Ouphe73%
$0.32↑#16327↓0.29↓19.3 years↑
"Spells that target this creature cost less to cast."
less to cast."
Sapphire Medallion72%
$7.39↑#365↑0.30↓28.9 years↑
"Blue spells you cast cost less to cast."
less to cast."
Pearl Medallion72%
$5.55↑#454↑0.23↓28.9 years↑
"White spells you cast cost less to cast."
less to cast."
Herald of Kozilek72%
$0.37↑#6236↑0.07↓10.9 years↑
"Colorless spells you cast cost less to cast."
less to cast."
Ruby Medallion72%
$13.06↑#291↑0.28↓28.9 years↑
"Red spells you cast cost less to cast."
less to cast."
Emerald Medallion71%
$4.07↑#586↑0.20↓28.9 years↑
"Green spells you cast cost less to cast."
less to cast."
Urza's Filter70%
$4.79↑#14485↓0.35↓25.9 years↑
"Multicolored spells cost less to cast."
less to cast."
Jet Medallion70%
$12.06↑#278↑0.22↓28.9 years↑
"Black spells you cast cost less to cast."
less to cast."
Vine Gecko70%
$0.17↓#19679↓0.25↓5.9 years
"The first kicked spell you cast each turn costs less to cast."
less to cast."