Perilous Research 
Instant
$0.28 #9662 0.22 20.1 years
Draw two cards, then sacrifice a permanent.
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Cards similar to Perilous Research 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.
Witherbloom Charm91%
$0.31↑#5171↑0.00↓0.4 years↓
"• You may sacrifice a permanent. If you do, draw two cards."
Pitiless Carnage88%
$0.31↑#6243↑0.00↓2.4 years↓
"Sacrifice any number of permanents you control, then draw that many cards."
Read the Runes88%
$0.57↑#112770.06↓23.9 years↑
"Draw X cards. For each card drawn this way, discard a card unless you sacrifice a permanent."
God-Eternal Bontu88%
$0.26↓#3553↑0.32↑7.3 years↓
"When this card enters, sacrifice any number of other permanents, then draw that many cards."
Lorehold Command86%
$0.29↑#99470.295.4 years↓
"• Sacrifice a permanent, then draw two cards."
Infernal Tribute80%
$2.85↑#19797↓0.2829.2 years↑
"
, Sacrifice a nontoken permanent: Draw a card."
, Sacrifice a nontoken permanent: Draw a card."
Angelic Purge79%
$0.11↓#12392↓0.06↓10.4 years↓
"As an additional cost to cast this spell, sacrifice a permanent."
Renounce78%
$0.34↑#21074↓0.33↑26.9 years↑
"Sacrifice any number of permanents. You gain 2 life for each permanent sacrificed this way."
Merciless Resolve76%
$0.06↓#18984↓0.06↓10.4 years↓
"Draw two cards."
Village Rites74%
$0.32↑#202↑0.09↓6.2 years↓
"Draw two cards."
Skulltap74%
$0.16↓#18967↓0.56↑23.3 years↑
"Draw two cards."
Altar's Reap74%
$0.18↓#4428↑0.2314.9 years↓
"Draw two cards."
Corrupted Conviction74%
$0.40↑#596↑0.10↓3.4 years↓
"Draw two cards."
Costly Plunder73%
$0.26↓#3399↑0.178.9 years↓
"Draw two cards."
Foundry Helix72%
$0.13↓#20012↓0.00↓5.2 years↓
"As an additional cost to cast this spell, sacrifice a permanent."
Crack the Earth72%
$0.25↓#18894↓0.2121.6 years↑
"Each player sacrifices a permanent of their choice."
Earth-Cult Elemental70%
$0.23↓#77680.185.1 years↓
"Each player sacrifices a permanent of their choice."
Vraska, Golgari Queen70%
$4.76↑#4169↑0.45↑7.9 years↓
"+2: You may sacrifice another permanent. If you do, you gain 1 life and draw a card."