Isperia, Supreme Judge 




Legendary Creature — Sphinx
Flying
Whenever a creature attacks you or a planeswalker you control, you may 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.
Historian of Zhalfir 90%
$0.07#30706
"Whenever this creature attacks, if you control a Teferi planeswalker, draw a card."
Jon Irenicus, Shattered One 86%
$0.33#7523
"Whenever a creature you own but don't control attacks, you draw a card."
Eternal of Harsh Truths 86%
$0.22#17420
"Whenever this creature attacks and isn't blocked, draw a card."
Werewolf Pack Leader 85%
$0.39#8342
"Whenever this creature attacks, if you attacked with creatures with total power 6 or greater this combat, draw a card."
Ophidian 84%
$0.43#26493
"Whenever this creature attacks and isn't blocked, you may draw a card. If you do, this creature assigns no combat damage this turn."
Search the Premises 80%
$0.31#7146
"Whenever a creature attacks you or a planeswalker you control, investigate."
Angelic Sell-Sword 80%
$0.44#8244
"Whenever this creature attacks, if its power is 6 or greater, draw a card."
Mangara, the Diplomat 80%
$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."