Brainwash 
Enchantment — Aura
$0.12 #22338 0.20 32.2 years
Enchant creature
Enchanted creature can't attack unless its controller pays 
.
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Cards similar to Brainwash 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.
Oppressive Rays90%
$0.09↓#16110↑0.53↑12.5 years↓
"Enchanted creature can't attack or block unless its controller pays ."
."
Cowed by Wisdom90%
$0.18↑#220220.31↑21.4 years↓
"Enchanted creature can't attack or block unless its controller pays 
for each card in your hand."
for each card in your hand."
Ghostly Prison89%
$5.67↑#159↑1.29↑22.1 years↓
"Creatures can't attack you unless their controller pays 
for each creature they control that's attacking you."
for each creature they control that's attacking you."
War Tax88%
$1.82↑#15786↑0.40↑27.0 years↓
"
: This turn, creatures can't attack unless their controller pays for each attacking creature they control."
: This turn, creatures can't attack unless their controller pays for each attacking creature they control."
Collective Restraint86%
$12.03↑#6827↑0.99↑26.0 years↓
"Creatures can't attack you unless their controller pays for each creature they control that's attacking you, where X is the number of basic land types among lands you control."
for each creature they control that's attacking you, where X is the number of basic land types among lands you control."
Propaganda84%
$1.95↑#111↑1.27↑29.0 years↓
"Creatures can't attack you unless their controller pays for each creature they control that's attacking you."
for each creature they control that's attacking you."
Koskun Falls82%
$17.16↑#10747↑0.79↑31.1 years↓
"Creatures can't attack you unless their controller pays for each creature they control that's attacking you."
for each creature they control that's attacking you."
Windborn Muse81%
$0.53↑#1001↑0.91↑23.7 years↓
"Creatures can't attack you unless their controller pays for each creature they control that's attacking you."
for each creature they control that's attacking you."
Baird, Steward of Argive80%
$0.23↑#2585↑0.59↑8.5 years↓
"Creatures can't attack you or planeswalkers you control unless their controller pays for each of those creatures."
for each of those creatures."
Deep Freeze79%
$0.21↑#183540.298.5 years↓
"Enchant creature"
Sphere of Safety78%
$3.48↑#691↑1.27↑14.0 years↓
"Creatures can't attack you or planeswalkers you control unless their controller pays for each of those creatures, where X is the number of enchantments you control."
for each of those creatures, where X is the number of enchantments you control."
Demonic Torment78%
$5.29↑#28318↓0.44↑32.4 years
"Enchanted creature can't attack."
+1 more matching line
Archon of Absolution76%
$0.17↑#7534↑0.43↑7.0 years↓
"Creatures can't attack you or planeswalkers you control unless their controller pays for each of those creatures."
for each of those creatures."
Dáin, Lord of the Iron Hills76%
$0.27↑#8545↑0.44↑0.2 years↓
"As long as you have an enduring story, creatures can't attack you unless their controller pays for each of those creatures."
for each of those creatures."
Uneasy Alliance76%
$0.13↑#183730.270.6 years↓
"Enchanted creature can't attack or block."
Elephant Grass76%
$2.70↑#10310↑0.70↑29.7 years↓
"Nonblack creatures can't attack you unless their controller pays for each creature they control that's attacking you."
for each creature they control that's attacking you."
Detained by Legionnaires75%
$0.14↑#180860.122.3 years↓
"Enchanted creature can't attack or block."
+1 more matching line
Luminous Bonds75%
$0.04↓#191770.44↑8.8 years↓
"Enchanted creature can't attack or block."
Pious Interdiction74%
$0.22↑#260920.58↑9.1 years↓
"Enchanted creature can't attack or block."
+1 more matching line
Hold for Ransom74%
$0.16↑#197370.60↑4.5 years↓
"Enchanted creature can't attack or block and has "
: this card's controller sacrifices it and draws a card. Activate only as a sorcery.""
: this card's controller sacrifices it and draws a card. Activate only as a sorcery.""+1 more matching line