Canyon Crab 

Creature — Crab
{1}{U}: This creature gets +2/-2 until end of turn.
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.
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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.
Anvil of Bogardan 84%
$50.06#5269
"At the beginning of each player's draw step, that player draws an additional card, then discards a card."
Locke Cole 82%
$0.26#11183
"Whenever this card deals combat damage to a player, draw a card, then discard a card."