Unseen Walker {1}{G}
Creature — Dryad
Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)
{1}{G}{G}: Target creature gains forestwalk until end of turn.
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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.
Scarwood Hag 84%
$0.96#30903
"{G}{G}{G}{G}, {T}: Target creature gains forestwalk until end of turn."