Trap Digger {3}{W}
Creature — Human Soldier
{2}{W}, {T}: Put a trap counter on target land you control.
Sacrifice a land with a trap counter on it: This creature deals 3 damage to target attacking creature without flying.
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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.