Nantuko Mentor 

Creature — Insect Druid
{2}{G}, {T}: Target creature gets +X/+X until end of turn, where X is that creature's power.
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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.
Viridian Lorebearers 87%
$0.23#29141
"{3}{G}, {T}: Target creature gets +X/+X until end of turn, where X is the number of artifacts your opponents control."
Elder of Laurels 81%
$0.26#16467
"{3}{G}: Target creature gets +X/+X until end of turn, where X is the number of creatures you control."