Narcolepsy 
Enchantment — Aura
$0.06 #18829 0.62 16.4 years
Enchant creature
At the beginning of each upkeep, if enchanted creature is untapped, tap it.
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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.
Glaring Aegis98%
$0.07↑#177390.00↓11.4 years↓
"Enchant creature"
Curse of Chains96%
$0.21↑#176090.44↓18.3 years↑
"At the beginning of each upkeep, tap enchanted creature."
Sleep with the Fishes90%
$0.18↑#195630.27↓4.4 years↓
"Enchant creature"
Burden of Guilt89%
$0.14↑#222460.21↓14.6 years↓
": Tap enchanted creature."
: Tap enchanted creature."+1 more matching line
Locked in the Cemetery86%
$0.10↑#24514↓0.12↓4.9 years↓
"Enchant creature"
Debtor's Pulpit84%
$0.04↓#26761↓0.20↓13.6 years↓
"Enchanted land has "
: Tap target creature.""
: Tap target creature.""
So Shiny81%
$0.17↑#26012↓0.22↓5.2 years↓
"Enchant creature"
Castaway's Despair80%
$0.09↑#26583↓0.538.9 years↓
"When this Aura enters, tap enchanted creature."
Claustrophobia78%
$0.05↓#190770.36↓14.9 years↓
"When this Aura enters, tap enchanted creature."
+1 more matching line
Containment Protocol78%
$0.21↑#28751↓0.00↓0.5 years↓
"When this Aura enters, tap enchanted creature."
+1 more matching line
Sleep Paralysis78%
$0.06#23005↓0.88↑10.4 years↓
"When this Aura enters, tap enchanted creature."
+1 more matching line
Capture Sphere78%
$0.05↓#187020.25↓7.9 years↓
"When this Aura enters, tap enchanted creature."
+1 more matching line
Starlight Snare78%
$0.13↑#204130.25↓1.8 years↓
"When this Aura enters, tap enchanted creature."
+1 more matching line
Charmed Sleep78%
$0.07↑#155620.25↓6.9 years↓
"When this Aura enters, tap enchanted creature."
Paralyze78%
$0.13↑#205250.5733.1 years↑
"When this Aura enters, tap enchanted creature."
Waterknot78%
$0.12↑#218840.25↓8.6 years↓
"When this Aura enters, tap enchanted creature."
Wanderbrine Trapper78%
$0.17↑#204620.00↓0.6 years↓
", , Tap another untapped creature you control: Tap target creature an opponent controls."
, , Tap another untapped creature you control: Tap target creature an opponent controls."
Shoving Match78%
$0.36↑#27271↓0.39↓26.9 years↑
"Until end of turn, all creatures gain ": Tap target creature.""
: Tap target creature.""
Harrier Griffin78%
$0.12↑#25434↓0.33↓20.6 years↑
"At the beginning of your upkeep, tap target creature."
Sleep Magic77%
$0.21↑#14296↑0.25↓1.2 years↓
"When this Aura enters, tap enchanted creature."
+1 more matching line