Trouble in Pairs 


Enchantment
If an opponent would begin an extra turn, that player skips that turn instead.
Whenever an opponent attacks you with two or more creatures, draws their second card each turn, or casts their second spell each turn, you draw a card.
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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.
Stranglehold 100%
$7.46#6470
"If an opponent would begin an extra turn, that player skips that turn instead."
Gerrard's Hourglass Pendant 92%
$2.89#7363
"If a player would begin an extra turn, that player skips that turn instead."
Ugin's Nexus 92%
$1.93#7112
"If a player would begin an extra turn, that player skips that turn instead."
Everett K. Ross, Hapless Attaché 90%
$0.59#18504
"Whenever an opponent attacks you with two or more creatures, draw a card."
Mangara, the Diplomat 89%
$0.25#616
"Whenever an opponent attacks with creatures, if two or more of those creatures are attacking you and/or planeswalkers you control, draw a card."
Firemane Commando 89%
$0.96#1863
"Whenever another player attacks with two or more creatures, they draw a card if none of those creatures attacked you."
Possessed Portal 88%
$2.40#16908
"If a player would draw a card, that player skips that draw instead."
Urgoros, the Empty One 87%
$0.26#18626
"Whenever this card deals combat damage to a player, that player discards a card at random. If the player can't, you draw a card."
Skullknocker Ogre 86%
$0.06#29482
"Whenever this creature deals damage to an opponent, that player discards a card at random. If the player does, they draw a card."
Tahngarth, First Mate 86%
$0.23#15357
"Whenever an opponent attacks with one or more creatures, if this card is tapped, you may have that opponent gain control of this card until end of combat. If you do, choose a player or planeswalker that opponent is attacking. this card is attacking that player or planeswalker."
Hypnotic Specter 85%
$1.92#8638
"Whenever this creature deals damage to an opponent, that player discards a card at random."
Aurelia, the Law Above 84%
$1.44#1747
"Whenever a player attacks with three or more creatures, you draw a card."
Seedtime 84%
$13.66#10394
"Take an extra turn after this one if an opponent cast a blue spell this turn."
Neheb, the Worthy 84%
$0.26#16201
"Whenever this card deals combat damage to a player, each player discards a card."
Ever-Watching Threshold 83%
$0.54#8790
"Whenever an opponent attacks, if they attacked you and/or a planeswalker you control, draw a card."
Wei Night Raiders 82%
#26037
"Whenever this creature deals damage to an opponent, that player discards a card."
Zhang Liao, Hero of Hefei 82%
$34.19#29698
"Whenever this card deals damage to an opponent, that opponent discards a card."