Oliphaunt 

Creature — Elephant
$0.27 #4202 0.03 3.3 years
Trample
Whenever this creature attacks, another target creature you control gets +2/+0 and gains trample until end of turn.
Mountaincycling
(
, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)
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Cards similar to Oliphaunt 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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"Whenever this creature attacks, another target creature you control gets +2/+2 and gains trample until end of turn."
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"Whenever this creature attacks, another target creature you control gains trample and gets +X/+X until end of turn, where X is this creature's power."
+1 more matching line