Hold for Ransom 

Enchantment — Aura
Enchant creature
Enchanted creature can't attack or block and has "{7}: Hold for Ransom's controller sacrifices it and draws a card. Activate only as a sorcery."
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Cards that do something similar 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.
Serra Bestiary 97%
#31048
"Enchanted creature can't attack or block, and its activated abilities with {T} in their costs can't be activated."
Ice Cage 97%
$0.08#24085
"Enchanted creature can't attack or block, and its activated abilities can't be activated."
One Thousand Lashes 97%
$0.11#19817
"Enchanted creature can't attack or block, and its activated abilities can't be activated."
+1 more matching line
Desert's Hold 97%
$0.17#20880
"Enchanted creature can't attack or block, and its activated abilities can't be activated."
Arachnus Web 97%
$0.18#13722
"Enchanted creature can't attack or block, and its activated abilities can't be activated."
+1 more matching line
Arrest 97%
$0.24#11361
"Enchanted creature can't attack or block, and its activated abilities can't be activated."
Prison Sentence 97%
$0.20#17204
"Enchanted creature can't attack or block, and its activated abilities can't be activated."
Krasis Incubation 97%
$0.08#25710
"Enchanted creature can't attack or block, and its activated abilities can't be activated."
Trapped in the Tower 97%
$0.11#18727
"Enchanted creature can't attack or block, and its activated abilities can't be activated."
Prison Term 97%
$0.38#13035
"Enchanted creature can't attack or block, and its activated abilities can't be activated."
+1 more matching line
Lawmage's Binding 97%
$0.16#16014
"Enchanted creature can't attack or block, and its activated abilities can't be activated."
+1 more matching line
Cowed by Wisdom 97%
$0.18#22095
"Enchanted creature can't attack or block unless its controller pays {1} for each card in your hand."
+1 more matching line
Lost in Thought 96%
$0.17#27827
"Enchanted creature can't attack or block, and its activated abilities can't be activated. Its controller may exile three cards from their graveyard for that player to ignore this effect until end of turn."
+1 more matching line
Oppressive Rays 96%
$0.12#15869
"Enchanted creature can't attack or block unless its controller pays {3}."
+1 more matching line
Heliod's Punishment 95%
$0.20#14831
"Enchanted creature can't attack or block. It loses all abilities and has "{T}: Remove a task counter from this card. Then if it has no task counters on it, destroy this card.""
+1 more matching line
Volrath's Curse 95%
#24912
"Enchanted creature can't attack or block, and its activated abilities can't be activated. That creature's controller may sacrifice a permanent of their choice for that player to ignore this effect until end of turn."