Sinkhole Surveyor 

Creature — Bird Scout
$0.32 #9161 0.00 1.5 years
Flying
Whenever this creature attacks, you lose 1 life and this creature endures 1. (Put a +1/+1 counter on it or create a 1/1 white Spirit creature token.)
Click a line or tag to filter
Cards similar to Sinkhole Surveyor 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.
Descendant of Storms90%
$0.21↓#18046↓0.001.5 years
"Whenever this creature attacks, you may pay 
. If you do, it endures 1."
Inspirited Vanguard84%
$0.06↓#20848↓0.001.5 years
"Whenever this creature enters or attacks, it endures 2."
Krumar Initiate80%
$0.15↓#19638↓0.061.5 years
"
,
, Pay X life: This creature endures X. Activate only as a sorcery."