Kederekt Leviathan {6}{U}{U}
Creature — Leviathan
When this creature enters, return all other nonland permanents to their owners' hands.
Unearth {6}{U} ({6}{U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
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.
Cyclone Summoner 85%
$0.28#7051
"When this creature enters, if you cast it from your hand, return all permanents to their owners' hands except for Giants, Wizards, and lands."