Ravener 
Creature — Tyranid
$0.99 #10340 0.21 4.0 years
Flash
Ravenous (This creature enters with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.)
When this creature enters, target creature attacks target opponent this turn if able.
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Cards similar to Ravener 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.
Broodlord96%
$1.04↑#84760.32↑4.0 years
"Ravenous"
Mawloc94%
$3.40↑#7388↑0.144.0 years
"Ravenous"
+1 more matching line
Exocrine92%
$1.32↑#7366↑0.52↑4.0 years
"Ravenous"
Aberrant92%
$5.06↑#5905↑0.53↑4.0 years
"Ravenous"
Tervigon91%
$4.24↑#5934↑0.10↓4.0 years
"Ravenous"
Termagant Swarm90%
$2.39↑#6847↑0.53↑4.0 years
"Ravenous"
Hormagaunt Horde90%
$0.45↓#100250.00↓4.0 years
"Ravenous"
Sporocyst90%
$9.00↑#4908↑0.124.0 years
"Ravenous"
Zoanthrope90%
$1.53↑#7010↑0.164.0 years
"Ravenous"
Tyrant Guard89%
$4.77↑#5898↑0.05↓4.0 years
"Ravenous"
Jacked Rabbit86%
$4.17↑#2196↑0.37↑2.2 years↓
"Ravenous"
Boiling Blood83%
$0.18↓#18554↓0.05↓29.4 years↑
"Target creature attacks this turn if able."
Lictor80%
$0.34↓#18478↓0.204.0 years
"Flash"
Dulcet Sirens80%
$0.60↓#17579↓0.1612.0 years↑
", 
: Target creature attacks target opponent this turn if able."
, : Target creature attacks target opponent this turn if able."
Necron Deathmark80%
$4.59↑#5020↑0.63↑4.0 years
"Flash"
Seeker of Slaanesh79%
$0.38↓#14688↓0.47↑4.0 years
"Each opponent must attack with at least one creature each combat if able."
Uncontrollable Anger78%
$0.04↓#28791↓0.06↓22.1 years↑
"Flash"
Sicarian Infiltrator77%
$4.25↑#6978↑0.05↓4.0 years
"Flash"
Mocking Doppelganger76%
$2.79↑#5559↑0.48↑4.4 years
"Flash"
Alluring Siren74%
$0.10↓#20371↓0.2417.3 years↑
": Target creature an opponent controls attacks you this turn if able."
: Target creature an opponent controls attacks you this turn if able."