Rayblade Trooper 

Creature — Human Soldier
$0.23 #15233 0.00 1.2 years
When this creature enters, put a +1/+1 counter on target creature you control.
Whenever a nontoken creature you control with a +1/+1 counter on it dies, create a 1/1 white Human Soldier creature token.
Warp 
(You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.)
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Cards similar to Rayblade Trooper 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.
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"When this creature enters, put a +1/+1 counter on target creature."
+1 more matching line
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$0.25↑#8365↑0.50↑6.3 years↑
"Whenever this creature or another creature you control dies, if it had a +1/+1 counter on it, create a 2/2 white Knight creature token with vigilance."
+1 more matching line
Grakmaw, Skyclave Ravager85%
$0.35↑#10333↑0.26↑6.1 years↑
"Whenever another creature you control dies, if it had a +1/+1 counter on it, put a +1/+1 counter on this card."
+1 more matching line
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$0.10↓#23878↓0.064.5 years↑
"When this creature enters, put two +1/+1 counters on target creature."