Craterhoof Behemoth {5}{G}{G}{G}
Creature — Beast
Haste
When this creature enters, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control.
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Cards that do something similar 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.
Earthshaker Giant 85%
#13891
"When this creature enters, other creatures you control get +3/+3 and gain trample until end of turn."
Rumbleweed 85%
$3.54#5934
"When this creature enters, other creatures you control get +3/+3 and gain trample until end of turn."
Centaur Chieftain 81%
$0.13#27925
"As long as there are seven or more cards in your graveyard, this creature has "When this creature enters, creatures you control get +1/+1 and gain trample until end of turn.""
+1 more matching line
Jubilation 81%
$0.32#6170
"When this creature enters, creatures you control get +2/+2 and gain trample until end of turn."