Living Tsunami {2}{U}{U}
Creature — Elemental
Flying
At the beginning of your upkeep, sacrifice this creature unless you return a land you control to its owner's hand.
click a line to search just that ability, click more to combine them
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.
Waterspout Djinn 86%
#31168
"At the beginning of your upkeep, sacrifice this creature unless you return an untapped Island you control to its owner's hand."
+1 more matching line