Interdict 
Instant
$0.34 #22529 0.32 28.9 years
Counter target activated ability from an artifact, creature, enchantment, or land. That permanent's activated abilities can't be activated this turn. (Mana abilities can't be targeted.)
Draw a card.
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Cards similar to Interdict 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.
Rust89%
$0.59↑#27962↓0.06↓32.3 years↑
"Counter target activated ability from an artifact source."
Stun84%
$0.18↓#9091↑0.12↓28.9 years
"Draw a card."
Tranquil Path82%
$0.10↓#27349↓0.56↑25.3 years↓
"Draw a card."
Whispers of the Muse80%
$0.38↑#14672↑0.2628.9 years
"Draw a card."
Gallantry80%
$0.12↓#252850.20↓28.9 years
"Draw a card."
Disrupt80%
$0.27↓#10216↑0.43↑29.2 years
"Draw a card."
Shadow Rift80%
$1.47↑#2890↑0.10↓28.9 years
"Draw a card."
Bind79%
$5.13↑#15301↑0.00↓25.9 years↓
"Counter target activated ability."
+1 more matching line
Keep Safe78%
$0.25↓#5867↑0.09↓6.4 years↓
"Draw a card."
Eyes of Gitaxias78%
$0.11↓#205180.293.4 years↓
"Draw a card."
Contentious Plan78%
$0.39↑#2237↑0.18↓7.3 years↓
"Draw a card."
Steady Progress78%
$0.29↓#5028↑0.10↓15.9 years↓
"Draw a card."
Dream Fracture77%
$0.15↓#4379↑0.2518.1 years↓
"Draw a card."
Healing Hands77%
$0.17↓#195180.57↑11.1 years↓
"Draw a card."
Reality Anchor76%
$0.16↓#29644↓0.20↓28.9 years
"Draw a card."
Trickbind76%
$9.21↑#6494↑0.14↓19.9 years↓
"Counter target activated or triggered ability. If a permanent's ability is countered this way, activated abilities of that permanent can't be activated this turn."
Honor76%
$0.31↓#6896↑0.12↓1.1 years↓
"Draw a card."
Inaction Injunction76%
$0.12↓#204340.44↑13.9 years↓
"Draw a card."
Squelch76%
$0.26↓#222280.4121.9 years↓
"Counter target activated ability."
+1 more matching line
Twisted Image76%
$0.26↓#7059↑0.2915.9 years↓
"Draw a card."