Katara's Reversal {2}{U}{U}
Instant
Counter up to four target spells and/or abilities.
Untap up to four target artifacts and/or creatures.
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.