Case of the Ransacked Lab 

Enchantment — Case
$0.65 #2852 0.18 2.7 years
Instant and sorcery spells you cast cost
less to cast.
To solve — You've cast four or more instant and sorcery spells this turn. (If unsolved, solve at the beginning of your end step.)
Solved — Whenever you cast an instant or sorcery spell, draw a card.
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Cards similar to Case of the Ransacked Lab 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.
Archmage of Runes94%
$3.31↑#924↑0.33↑1.9 years
"Whenever you cast an instant or sorcery spell, draw a card."
+1 more matching line
Urza, Lord Protector82%
$9.03↑#5931↓0.113.9 years↑
"Artifact, instant, and sorcery spells you cast cost
less to cast."
Goblin Electromancer79%
$0.21↓#673↑0.2314.1 years↑
"Instant and sorcery spells you cast cost
less to cast."
Stormcatch Mentor78%
$0.33↓#949↑0.29↑2.2 years
"Instant and sorcery spells you cast cost
less to cast."
Storm Skreelix78%
$0.20↓#18537↓0.07↓5.1 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +2/+0 until end of turn."
+1 more matching line
Mizzix of the Izmagnus78%
$0.84↑#6421↓0.75↑10.9 years↑
"Whenever you cast an instant or sorcery spell with mana value greater than the number of experience counters you have, you get an experience counter."
+1 more matching line
Mindsplice Apparatus78%
$1.01↑#30120.31↑3.7 years
"Instant and sorcery spells you cast cost
less to cast for each oil counter on this artifact."
Dirgur Focusmage // Braingeyser77%
$0.31↓#8056↓0.180.5 years↓
"Instant and sorcery spells you cast cost
less to cast."
+1 more matching line
Lunar Mystic76%
$0.21↓#19540↓0.2314.5 years↑
"Whenever you cast an instant spell, you may pay
. If you do, draw a card."
Jace's Sanctum76%
$0.57↓#4171↓0.2011.3 years↑
"Instant and sorcery spells you cast cost
less to cast."
+1 more matching line
Spectacle Mage75%
$0.11↓#21241↓0.05↓5.5 years↑
"Instant and sorcery spells you cast with mana value 5 or greater cost
less to cast."
Trail of Evidence74%
$0.30↓#9414↓0.00↓10.5 years↑
"Whenever you cast an instant or sorcery spell, investigate."
Curious Homunculus // Voracious Reader74%
$0.32↓#9577↓0.1210.2 years↑
"Instant and sorcery spells you cast cost
less to cast."
+2 more matching lines
Spellbinding Soprano74%
$0.23↓#19468↓0.144.5 years↑
"Whenever this creature attacks, instant and sorcery spells you cast this turn cost
less to cast."
Archmage Emeritus73%
$0.70↑#253↑0.45↑5.5 years↑
"Whenever you cast or copy an instant or sorcery spell, draw a card."
Vadrik, Astral Archmage73%
$0.26↓#11818↓0.215.1 years↑
"Instant and sorcery spells you cast cost
less to cast, where X is this card's power."
Wizards of Thay72%
$1.28↑#4045↓0.244.4 years↑
"You may cast sorcery spells as though they had flash."
+1 more matching line