The Ten Rings 
Legendary Artifact
Your maximum hand size is ten.
At the beginning of your end step, if you have fewer than ten cards in hand, draw cards equal to the difference.
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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.
Doctor Octopus, Master Planner 99%
$8.43#8670
"At the beginning of your end step, if you have fewer than eight cards in hand, draw cards equal to the difference."
+1 more matching line