Angelic Guardian {4}{W}{W}
Creature — Angel
Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever one or more creatures you control attack, they gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)
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.
Frontline Medic 84%
$0.22#3476
"Whenever this creature and at least two other creatures attack, creatures you control gain indestructible until end of turn."