Locket of Yesterdays 
Artifact
$2.81 #7831 0.06 20.0 years
Spells you cast cost less to cast for each card with the same name as that spell in your graveyard.
less to cast for each card with the same name as that spell in your graveyard.Click a line or tag to filter
Cards similar to Locket of Yesterdays 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.
Dwarven Shrine80%
$0.40↓#31705↓0.1525.1 years↑
"Whenever a player casts a spell, this enchantment deals X damage to that player, where X is twice the number of cards in all graveyards with the same name as that spell."
Cabal Shrine78%
$0.31↓#31450↓0.50↑25.1 years↑
"Whenever a player casts a spell, that player discards X cards, where X is the number of cards in all graveyards with the same name as that spell."
Twinning Glass75%
$0.30↓#25921↓0.28↑19.0 years↓
", 
: You may cast a spell from your hand without paying its mana cost if it has the same name as a spell that was cast this turn."
, : You may cast a spell from your hand without paying its mana cost if it has the same name as a spell that was cast this turn."
Bloodbond March74%
$0.74↓#17173↓0.21↑21.0 years
"Whenever a player casts a creature spell, each player returns all cards with the same name as that spell from their graveyard to the battlefield."
Stone Calendar70%
$14.91↑#20542↓0.37↑32.2 years↑
"Spells you cast cost less to cast."
less to cast."
Cornered Market70%
$0.65↓#27263↓0.67↑27.0 years↑
"Players can't cast spells with the same name as a nontoken permanent."
Harness the Storm70%
$0.34↓#17990↓0.0010.5 years↓
"Whenever you cast an instant or sorcery spell from your hand, you may cast target card with the same name as that spell from your graveyard."