Rapacious One 
Creature — Eldrazi Drone
$0.13 #10545 0.06 16.5 years
Trample
Whenever this creature deals combat damage to a player, create that many 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this token: Add 
."
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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.
Living Hive92%
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"Whenever this creature deals combat damage to a player, create that many 1/1 green Insect creature tokens."
Tana, the Bloodsower92%
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"Whenever this card deals combat damage to a player, create that many 1/1 green Saproling creature tokens."
Ant-Man, Elusive Avenger88%
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"Whenever this card deals combat damage to a player, create that many Treasure tokens."
Old Gnawbone88%
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"Whenever a creature you control deals combat damage to a player, create that many Treasure tokens."
Elsha, Threefold Master87%
$0.39↑#6464↑0.45↑1.5 years↓
"Whenever this card deals combat damage to a player, create that many 1/1 white Monk creature tokens with prowess."
RMS Titanic86%
$4.80↑#4601↑0.21↑3.0 years↓
"When this card deals combat damage to a player, sacrifice it and create that many Treasure tokens."
Pollenbright Wings86%
$0.20↑#14756↓0.47↑21.0 years↑
"Whenever enchanted creature deals combat damage to a player, create that many 1/1 green Saproling creature tokens."
Tervigon84%
$4.24↑#5934↑0.104.0 years↓
"Whenever this creature deals combat damage to a player, create that many 1/1 green Tyranid creature tokens."
Scepter of Celebration84%
$3.32↑#8405↑0.18↑4.5 years↓
"Whenever equipped creature deals combat damage to a player, create that many 1/1 green and white Citizen creature tokens."
Shroofus Sproutsire84%
$4.86↑#5664↑0.75↑1.9 years↓
"Whenever a Saproling you control deals combat damage to a player, create that many 1/1 green Saproling creature tokens."
+1 more matching line
Prosperous Bandit82%
$0.38↑#5534↑0.062.2 years↓
"Whenever this creature deals combat damage to a player, create that many tapped Treasure tokens."
Precinct Captain80%
$0.25↑#114630.22↑14.0 years↓
"Whenever this creature deals combat damage to a player, create a 1/1 white Soldier creature token."
Lathril, Blade of the Elves79%
$1.49↑#1993↑0.96↑5.7 years↓
"Whenever this card deals combat damage to a player, create that many 1/1 green Elf Warrior creature tokens."
Falcon and Redwing78%
$0.70↑#102990.21↑0.3 years↓
"Whenever this card deal combat damage to a player, create that many 1/1 white Bird creature tokens with flying, then put a +1/+1 counter on this card."
Killmonger, Ruthless Usurper78%
$0.25↑#14281↓0.43↑0.3 years↓
"Trample"
Bejeweled Warg78%
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"Trample"
Hoard Robber78%
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"Whenever this creature deals combat damage to a player, create a Treasure token."
Rampant Frogantua76%
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"Trample"
Quartzwood Crasher76%
$1.39↑#2005↑0.24↑6.5 years↓
"Whenever one or more creatures you control with trample deal combat damage to a player, create an X/X green Dinosaur Beast creature token with trample, where X is the amount of damage those creatures dealt to that player."
+1 more matching line
Photon, Mighty Marvel76%
$0.26↑#13814↓0.35↑0.3 years↓
"Whenever this card deals combat damage to a player, add that much mana of any one color. Until end of turn, you don't lose this mana as steps and phases end."