Anvil of Bogardan 
Artifact
Players have no maximum hand size.
At the beginning of each player's draw step, that player draws an additional card, then discards 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.
April, Reporter of the Weird 86%
$0.20#19682
"Whenever this card deals combat damage to a player, draw that many cards, then discard a card."
Locke Cole 84%
$0.26#11183
"Whenever this card deals combat damage to a player, draw a card, then discard a card."
Canyon Crab 84%
$0.07#15427
"At the beginning of your end step, if you haven't cast a spell from your hand this turn, draw a card, then discard a card."