Intruder Alarm 
Enchantment
$3.71 #1735 1.51 28.6 years
Creatures don't untap during their controllers' untap steps.
Whenever a creature enters, untap all creatures.
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Cards similar to Intruder Alarm 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.
Dream Tides92%
$0.41↓#18339↓1.5429.7 years↑
"Creatures don't untap during their controllers' untap steps."
Mudslide89%
$6.71↑#19813↓0.90↓31.4 years↑
"Creatures without flying don't untap during their controllers' untap steps."
Smoke82%
$7.41↑#6581↓1.72↑33.2 years↑
"Players can't untap more than one creature during their untap steps."
Magnetic Mountain79%
$0.41↓#23407↓1.08↓32.8 years↑
"Blue creatures don't untap during their controllers' untap steps."
Thelon's Curse79%
$0.63↓#31915↓0.84↓32.0 years↑
"Blue creatures don't untap during their controllers' untap steps."
An-Zerrin Ruins78%
$3.14↓#21991↓1.15↓31.1 years↑
"Creatures of the chosen type don't untap during their controllers' untap steps."
Awakening76%
$6.81↑#9098↓1.19↓28.6 years
"At the beginning of each upkeep, untap all creatures and lands."
Blizzard76%
$0.83↓#28621↓0.61↓31.4 years↑
"Creatures with flying don't untap during their controllers' untap steps."
Juntu Stakes75%
$0.29↓#25720↓0.73↓26.0 years↓
"Creatures with power 1 or less don't untap during their controllers' untap steps."
Village Bell-Ringer74%
$0.20↓#3778↓0.42↓15.1 years↓
"When this creature enters, untap all creatures you control."
Stoic Angel74%
$0.66↓#15394↓1.34↓18.0 years↓
"Players can't untap more than one creature during their untap steps."
Energy Storm74%
$1.41↓#27699↓1.12↓31.4 years↑
"Creatures with flying don't untap during their controllers' untap steps."
Wrath of Marit Lage74%
$0.33↓#24539↓1.35↓31.4 years↑
"Red creatures don't untap during their controllers' untap steps."
Meekstone74%
$5.87↑#2829↓1.5233.2 years↑
"Creatures with power 3 or greater don't untap during their controllers' untap steps."
Marble Titan74%
$2.05↓#18234↓1.13↓29.0 years
"Creatures with power 3 or greater don't untap during their controllers' untap steps."
Root Cage73%
$0.15↓#31952↓0.12↓26.4 years↓
"Mercenaries don't untap during their controllers' untap steps."
Drumbellower73%
$2.55↓#19210.68↓4.7 years↓
"Untap all creatures you control during each other player's untap step."
Midnight Guard72%
$0.09↓#14038↓0.14↓14.7 years↓
"Whenever another creature enters, untap this creature."
Mist of Stagnation72%
$0.51↓#25648↓1.5524.4 years↓
"Permanents don't untap during their controllers' untap steps."
Arena of the Ancients72%
$3.02↓#18947↓1.13↓32.4 years↑
"Legendary creatures don't untap during their controllers' untap steps."