Boon of Safety 
Instant
$0.32 #7261 0.31 4.4 years
Put a shield counter on target creature. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)
Scry 1.
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Cards similar to Boon of Safety 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.
Chrome Cat91%
$0.24↓#21891↓0.254.4 years
"When this creature enters, scry 1."
Grey Havens Navigator91%
$0.11↓#17703↓0.403.2 years↓
"When this creature enters, scry 1."
Rumbling Sentry91%
$0.03↓#30456↓0.00↓6.6 years↑
"When this creature enters, scry 1."
Prophet of the Peak90%
$0.16↓#25636↓0.00↓6.9 years↑
"When this creature enters, scry 2."
Galadhrim Guide90%
$0.17↓#16990↓0.223.2 years↓
"When this creature enters, scry 2."
Sage's Row Savant90%
$0.09↓#23602↓0.00↓7.6 years↑
"When this creature enters, scry 2."
Lost Legion90%
$0.11↓#22894↓0.21↓6.9 years↑
"When this creature enters, scry 2."
Octoprophet90%
$0.08↓#18067↓0.47↑7.2 years↑
"When this creature enters, scry 2."
Omenspeaker90%
$0.05↓#17189↓0.21↓12.9 years↑
"When this creature enters, scry 2."
Automatic Librarian90%
$0.21↓#20722↓0.00↓4.0 years
"When this creature enters, scry 2."
Thaumaturge's Familiar90%
$0.17↓#23171↓0.00↓6.6 years↑
"When this creature enters, scry 1."
Glider Kids90%
$0.11↓#17094↓0.00↓0.8 years↓
"When this creature enters, scry 1."
Senate Griffin90%
$0.06↓#29283↓0.00↓7.6 years↑
"When this creature enters, scry 1."
Oggyar Battle-Seer90%
$0.05↓#29867↓0.07↓5.4 years↑
"
: Scry 1."
: Scry 1."
Sigiled Starfish90%
$0.06↓#8942↓0.00↓12.3 years↑
": Scry 1."
: Scry 1."
Cloudreader Sphinx89%
$0.04↓#23987↓0.21↓8.4 years↑
"When this creature enters, scry 2."
Willow-Wind89%
$0.09↓#23217↓0.00↓3.2 years↓
"When this creature enters, scry 2."
Horizon Scholar89%
$0.03↓#25220↓0.2512.9 years↑
"When this creature enters, scry 2."
Wakandan Drone Flock89%
$0.04↓#27228↓0.00↓0.2 years↓
"When this creature enters, scry 2."
Faerie Seer89%
$0.31↓#2446↑0.09↓7.2 years↑
"When this creature enters, scry 2."