Duskshell Crawler 
Creature — Insect
$0.30 #1418 0.17 5.2 years
When this creature enters, put a +1/+1 counter on target creature.
Each creature you control with a +1/+1 counter on it has trample. (It can deal excess combat damage to the player or planeswalker it's attacking.)
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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.
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"Each creature you control with a +1/+1 counter on it has trample."
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"Creatures you control with +1/+1 counters on them have trample."
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"Each creature you control with a +1/+1 counter on it has trample."
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"Each creature you control with a +1/+1 counter on it has trample."
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"Each creature you control with a +1/+1 counter on it has trample."
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"Each creature you control with a +1/+1 counter on it has trample."
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"Each creature you control with a +1/+1 counter on it has trample."
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"Creatures you control with +1/+1 counters on them have trample."
Zegana, Utopian Speaker90%
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"Each creature you control with a +1/+1 counter on it has trample."
+1 more matching line
Khenra Charioteer90%
$0.27↓#14241↓0.05↓9.4 years↑
"Other creatures you control have trample."
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"Other creatures you control have trample."
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"Other creatures you control have trample."
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$8.73↑#12990.46↑1.2 years↓
"Creatures you control with +1/+1 counters on them have reach and trample."
Emil, Vastlands Roamer88%
$0.24↓#9859↓0.00↓0.4 years↓
"Creatures you control with +1/+1 counters on them have trample."
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"Bolster X, where X is the number of cards in your hand. Each creature you control with a +1/+1 counter on it gains trample until end of turn."
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"When this creature enters, put a +1/+1 counter on target creature."
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"Other creatures you control have trample."
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"When this creature enters, put a +1/+1 counter on target creature."
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"When this creature enters, put a +1/+1 counter on target creature."
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"When this creature enters, put a +1/+1 counter on target creature."