Cabal Pit
Land
{T}: Add {B}. This land deals 1 damage to you.
Threshold — {B}, {T}, Sacrifice this land: Target creature gets -2/-2 until end of turn. Activate only if there are seven or more cards in your graveyard.
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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.
Mudflat Village 100%
$0.35#2680
"{T}: Add {B}. Spend this mana only to cast a creature spell."
+1 more matching line
Tomb of Urami 99%
$4.28#17377
"{T}: Add {B}. this card deals 1 damage to you if you don't control an Ogre."
+1 more matching line
Aclazotz, Deepest Betrayal // Temple of the Dead 99%
$10.00#2491
"{T}: Add {B}."
+1 more matching line