Brood Monitor 
Creature — Eldrazi Drone
$0.12 #9405 0.25 11.0 years
Devoid (This card has no color.)
When this creature enters, create three 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this token: Add 
."
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Cards similar to Brood Monitor 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.
Eyeless Watcher100%
$0.31↑#103790.09↓11.0 years
"When this creature enters, create two 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this token: Add .""
.""+1 more matching line
Birthing Hulk96%
$0.11↓#16414↓0.00↓10.7 years
"When this creature enters, create two 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this token: Add .""
.""+1 more matching line
Scion Summoner96%
$0.09↓#15721↓0.07↓10.7 years
"When this creature enters, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add .""
.""+1 more matching line
Eldrazi Skyspawner96%
$0.10↓#12767↓0.00↓11.0 years
"When this creature enters, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add .""
.""+1 more matching line
Incubator Drone96%
$0.08↓#20888↓0.12↓11.0 years
"When this creature enters, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add .""
.""+1 more matching line
Emrakul's Hatcher94%
$0.24↑#78050.2716.5 years↑
"When this creature enters, create three 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this token: Add .""
.""
Kozilek's Predator94%
$0.10↓#108230.12↓16.5 years↑
"When this creature enters, create two 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this token: Add .""
.""
Dread Drone94%
$0.06↓#17622↓0.2616.5 years↑
"When this creature enters, create two 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this token: Add .""
.""
Vestige of Emrakul94%
$0.11↓#28961↓0.2411.0 years
"Devoid"
Call the Scions94%
$0.13↑#13068↓0.09↓11.0 years
"Create two 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this token: Add .""
.""+1 more matching line
Eldrazi Repurposer94%
$0.22↑#95480.06↓2.3 years↓
"Devoid"
Catacomb Sifter92%
$0.24↑#94360.06↓11.0 years
"When this creature enters, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add .""
.""+1 more matching line
Brood Butcher92%
$0.28↑#18722↓0.59↑11.0 years
"When this creature enters, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this token: Add .""
.""+1 more matching line
Grave Birthing88%
$0.09↓#18501↓0.12↓11.0 years
"Devoid"
Drowner of Hope88%
$0.22↑#80910.00↓11.0 years
"When this creature enters, create two 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this token: Add .""
.""+1 more matching line
Nest Invader88%
$0.30↑#11979↓0.00↓16.5 years↑
"When this creature enters, create a 0/1 colorless Eldrazi Spawn creature token. It has "Sacrifice this token: Add .""
.""
Kozilek's Translator88%
$0.07↓#25954↓0.2910.7 years
"Devoid"
Blinding Drone88%
$0.09↓#23775↓0.1910.7 years
"Devoid"
Stalking Drone87%
$0.04↓#30041↓0.00↓10.7 years
"Devoid"
Complete Disregard87%
$0.05↓#24681↓0.3311.0 years
"Devoid"