Deeproot Historian 
Creature — Merfolk Druid
$0.25 #7326 0.00 2.8 years
Merfolk and Druid cards in your graveyard have retrace. (You may cast cards with retrace from your graveyard by discarding a land card in addition to paying their other costs.)
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Cards similar to Deeproot Historian 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.
Six71%
$4.77↑#579↑0.41↑2.2 years
"During your turn, nonland permanent cards in your graveyard have retrace."