Scour the Laboratory 
Instant
$0.08 #26650 0.00 10.2 years
Delirium — This spell costs 
less to cast if there are four or more card types among cards in your graveyard.
less to cast if there are four or more card types among cards in your graveyard.Draw three cards.
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Cards similar to Scour the Laboratory 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.
Dusk Feaster98%
$0.06↓#300230.0010.2 years
"This spell costs less to cast if there are four or more card types among cards in your graveyard."
less to cast if there are four or more card types among cards in your graveyard."
Drag to the Roots92%
$0.16↑#4328↑0.11↑2.1 years↓
"This spell costs less to cast as long as there are four or more card types among cards in your graveyard."
less to cast as long as there are four or more card types among cards in your graveyard."
Gnarlwood Dryad88%
$0.27↑#8839↑0.0010.2 years
"This creature gets +2/+2 as long as there are four or more card types among cards in your graveyard."
Moldgraf Scavenger88%
$0.04↓#273320.15↑10.5 years
"This creature gets +3/+0 as long as there are four or more card types among cards in your graveyard."
Brilliant Plan88%
$0.09↑#215590.26↑27.5 years↑
"Draw three cards."
Concentrate88%
$0.16↑#11941↑0.12↑25.1 years↑
"Draw three cards."
Jace's Ingenuity88%
$0.16↑#15805↑0.31↑16.3 years↑
"Draw three cards."
Draconic Lore86%
$0.20↑#7945↑0.24↑4.4 years↓
"Draw three cards."
+1 more matching line
Arcane Epiphany86%
$0.20↑#11151↑0.061.9 years↓
"Draw three cards."
Treasure Cruise82%
$0.23↑#644↑0.25↑12.1 years↑
"Draw three cards."
Vivisurgeon's Insight82%
$0.26↑#7862↑0.073.7 years↓
"Draw three cards. Proliferate."
Mind Spring82%
$0.27↑#5199↑0.0018.7 years↑
"Draw X cards."
Tidings82%
$0.29↑#16946↑0.0027.3 years↑
"Draw four cards."
Soul Swallower82%
$0.25↑#17331↑0.20↑10.5 years
"At the beginning of your upkeep, if there are four or more card types among cards in your graveyard, put three +1/+1 counters on this creature."
Reverse Engineer82%
$0.18↑#8030↑0.12↑9.8 years
"Draw three cards."
Shared Discovery80%
$0.15↑#19433↑0.0016.5 years↑
"Draw three cards."
Harmonize80%
$0.16↑#327↑0.13↑19.7 years↑
"Draw three cards."
Emrakul, the Promised End80%
$24.75↑#1834↑1.98↑10.2 years
"This spell costs 
less to cast for each card type among cards in your graveyard."
less to cast for each card type among cards in your graveyard."
Lucid Dreams80%
$0.12↑#268140.005.3 years↓
"Draw X cards, where X is the number of card types among cards in your graveyard."
Kessig Dire Swine79%
$0.10↑#275120.14↑10.5 years
"This creature has trample as long as there are four or more card types among cards in your graveyard."