Cards like Skittering Monstrosity

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.

Skittering Skirge99%

$0.35↑#310640.31↑27.9 years↑

"When you cast a creature spell, sacrifice this creature."

cast-trigger-you, drawback, cast-trigger

Skittering Horror98%

$0.19↑#315450.19↑27.2 years↑

"When you cast a creature spell, sacrifice this creature."

cast-trigger-you, drawback, cast-trigger

Illusory Demon98%

$0.09↑#311010.47↑17.3 years↓

"When you cast a spell, sacrifice this creature."

cast-trigger-you, drawback, cast-trigger

Jackalope Herd80%

$0.16↑#291480.0028.2 years↑

"When you cast a spell, return this creature to its owner's hand."

cast-trigger-you, drawback, cast-trigger

Reclusive Wight76%

$0.19↑#312870.27↑27.9 years↑

"At the beginning of your upkeep, if you control another nonland permanent, sacrifice this creature."

drawback

Demon of Catastrophes74%

$0.31↑#15129↑0.20↑8.1 years↓

"As an additional cost to cast this spell, sacrifice a creature."

drawback

Juju Bubble74%

$0.20↑#288080.0629.6 years↑

"When you play a card, sacrifice this artifact."

cast-trigger-you, drawback, cast-trigger

Beast Whisperer70%

$7.51↑#213↑0.40↑7.9 years↓

"Whenever you cast a creature spell, draw a card."

cast-trigger-you, cast-trigger, triggered-ability

Bearer of Silence70%

$0.28↑#22501↑0.39↑10.6 years↓

"When you cast this spell, you may pay

. If you do, target opponent sacrifices a creature."

drawback, cast-trigger, triggered-ability

Primordial Sage70%

$0.85↑#4426↑0.19↑20.9 years

"Whenever you cast a creature spell, you may draw a card."

cast-trigger-you, cast-trigger, triggered-ability

Skittering Monstrosity

Cards similar to Skittering Monstrosity expected a card that isn't here?